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Revisiting the InflationGrowth Nexus: Evidence from Malaysia
Using OLS Estimation
Noris Fatilla Ismail, Nursyaza Aliah Radzi, Alisha Nabila Aziram, Ahmad Fudhil Mohd Zaini, Ameerul
Imran Idris
Faculty of Business and Management, University Teknologi MARA (UiTM), Kedah Campus,
08400 Merbok, Kedah Darulaman, Malaysia
*Corresponding Author
DOI:
https://dx.doi.org/10.47772/IJRISS.2025.910000123
Received: 02 October 2025; Accepted: 08 October 2025; Published: 05 November 2025
ABSTRACT
This research investigates the influence of inflation on economic growth, with particular focus on developing
economies. Previous studies reveal that the relationship between inflation and growth is not uniform but instead
varies depending on the country context and time period under review. Evidence from developing European
nations shows that inflation exerts a slight negative impact on growth, whereas research conducted in Pakistan
highlights a significant adverse effect of inflation on economic growth in both the short and long run. Conversely,
another study covering the period 19802018 in Pakistan reported no meaningful effect of inflation or
unemployment on economic performance. Given these mixed and sometimes contradictory findings, this study
adopts a time series approach to explore the dynamics between inflation and economic growth, with Gross
Domestic Product (GDP) employed as the dependent variable. The analysis relies on the Ordinary Least Squares
(OLS) estimation technique, implemented through EViews software. To capture the relationship in greater detail,
a semi-log linear regression model was utilized, incorporating inflation, interest rate, government consumption,
and trade openness as explanatory variables. Additionally, robustness checks and the Ramsey RESET test were
conducted to validate the stability and proper specification of the model. The empirical outcomes suggest that
inflation exerts a substantial positive effect on economic growth, reinforcing the ongoing debate on
macroeconomic stability and balanced policy intervention. Overall, the study underscores the importance of
effective inflation management as a prerequisite for sustaining long-term economic growth in developing
nations.
Keywords: Inflation, Interest rate, Exchange rate, Investment, Trade Openness, Government spending JEL
Classification: F14, F21, F43, F62
INTRODUCTION
Inflation has long been regarded as one of the most influential macroeconomic variables, with wide-ranging
implications for both short-term stability and long-run growth. Classical and neoclassical perspectives generally
predict that sustained inflation undermines economic output by distorting price signals, reducing purchasing
power, and discouraging investment. Yet, recent empirical findings suggest that this relationship is more nuanced,
shaped by the level of inflation, its volatility, and country-specific economic structures.
Evidence from the European Union (EU) between 2000 and 2023 illustrates this complexity. Pappas and Boukas
(2025) report that inflation rates alone do not directly constrain GDP growth; instead, it is inflation uncertainty
reflected in volatile price expectation that exerts a persistent drag on economic performance. Moreover, their
analysis shows that higher interest rates, often used to counter inflation, may harm growth by tightening financial
conditions without delivering proportional gains in price stability. This aligns with broader global evidence that
stabilizing expectations may matter as much as lowering inflation itself.
The experience of emerging economies adds another layer to this debate. In Indonesia, (Meliza, 2024; Ismail,
N.F. & Ismail, S, 2021) finds that inflation had a significantly negative long-term effect on economic growth
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between 2012 and 2021, primarily by eroding purchasing power and stalling productive activity. Crucially, her
study highlights the moderating role of electronic money transactions: as digital payment adoption increased,
the adverse effects of inflation were dampened, suggesting that digital finance can strengthen resilience against
inflation-driven slowdowns.
A threshold effect has also been identified in inflation-targeting nations. Ekinci, Tün, and Ceylan (2020) show
that moderate inflation, up to about 4.2 percent, may support growth marginally, but beyond this point the
relationship turns negative each additional percentage point of inflation above the threshold reduces growth
significantly. This nonlinear evidence underscores the importance of striking a balance between preventing
runaway inflation and avoiding excessively tight monetary conditions.
Recent global research further supports the importance of managing inflation uncertainty. Haa (2024)
demonstrates that rising uncertainty around inflation expectations can depress investment and slow growth,
particularly in economies with volatile price environments. Similarly, a VoxEU (2024) analysis notes that even
as headline inflation in advanced economies eases, lingering uncertainty continues to weigh on consumption and
investment. The OECD (2025) likewise cautions that while inflation is projected to moderate, persistently high
rates combined with restrictive monetary policies risk curbing growth by eroding real incomes and raising
borrowing costs. Consistent with these findings, the IMF’s World Economic Outlook (2023) emphasizes that
although inflation pressures are receding, policy tightening remains a key factor restraining global growth
momentum.
Taken together, this body of evidence suggests that the link between inflation and growth cannot be reduced to
a simple negative correlation. Rather, it depends on the level and volatility of inflation, the credibility of policy
frameworks, and the degree of financial innovation within an economy. For policymakers, the challenge lies not
only in targeting low inflation but also in managing expectations, fostering resilience through digital and
financial systems, and avoiding overly restrictive measures that may jeopardize long-term economic expansion.
LITERATURE REVIEW
Inflation has long been recognized as a critical macroeconomic variable influencing economic growth, with
much of the debate centring on its threshold effects. According to Anochiwa and Maduka (2015), the ability of
monetary authorities to maintain single-digit inflation enhances growth. However, the Nigerian experience
contradicts this assertion. Statistics from the Central Bank of Nigeria (2018) reveal that between 1980 and 2018,
Nigeria experienced single-digit inflation in only 14 out of 38 years. This persistent double-digit inflation reflects
a failure of both monetary and fiscal policy, often aggravated by repeated fuel price hikes such as the increase
to ₦97 per litre in 2012 and ₦145 per litre in 2016that amplified inflationary pressures and escalated the cost
of living (Idris & Suleiman, 2019).
The relationship between inflation and growth has been widely studied across regions. Fischer (1993), as
highlighted by Bick (2010), was among the first to show that the relationship is non-linear: while moderate
inflation can stimulate growth, high inflation undermines it. Fischer identified an 8 percent inflation threshold,
below which inflation enhances growth and above which it becomes harmful, a result reaffirmed by Dammak
and Helali (2017) across 87 countries (19701990).
Subsequent research has produced varying thresholds depending on income level and regional context.
Ndoricimpa (2017), analyzing 47 African countries (19702013), reported thresholds of 9 percent for low-
income and 6.5 percent for middle-income countries, with a combined cut-off at 6.7 percent. Thanh (2015), using
the Panel Smooth Transition Regression (PSTR) model on five Asian countries (19802011), estimated a
threshold of 7.84 percent. Similarly, Eggoh and Khan (2014), employing PSTR and GMM, confirmed the non-
linear nexus. Espinoza, Leon, and Prasad (2010), through Logistic Smooth Transition Regression (LSTR) across
165 countries, suggested a global threshold near 10 percent, while the Reserve Bank of India (2014) estimated
narrower bands of 4.66.7 percent, later underpinning India’s flexible inflation-targeting framework.
Recent evidence continues to refine these findings. Chu, Sek, and Ismail (2022) applied a PSTR model to EU,
ASEAN, and African countries and found distinct thresholds: about 4.17 percent for EU economies, 6.02 percent
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for ASEAN, and between 0.94 and 14.5 percent for African countries, highlighting strong regional heterogeneity.
In Vietnam, Tung and Thanh (2015) estimated a 7 percent threshold, while in Indonesia, Kusumatrisna, Sugema,
and Pasaribu (2023) found nonlinear effects with thresholds of 9.59 percent under normal conditions and 5.22
percent when excluding structural breaks. This suggests that stability and structural context shape the tolerable
level of inflation.
Beyond threshold levels, the uncertainty of inflation has emerged as a critical determinant of growth outcomes.
Mandeya et al. (2022) argue that inflation volatility disrupts long-run growth trajectories, while a South African
study (19612019) confirms that inflation uncertainty exerts short-run negative effects on output even when
inflation is relatively stable. On a global scale, the Federal Reserve (2025) warns that heightened inflation
uncertainty transmitted across borders complicates investment planning and undermines growth prospects.
Likewise, Aslam (2023) shows that emerging economies are more vulnerable to inflationary impacts of
uncertainty shocks than advanced economies, reflecting structural differences in resilience.
Monetary factors further complicate the inflationgrowth nexus. Aslam (2016), studying Sri Lanka (19592013),
found money supply to positively influence growth, while Gatawa, Abdulgafar, and Olarinde (2017) reported
that in Nigeria (19732013), money supply, interest rates, and inflation jointly exert negative effects on output.
These contrasting findings underscore country-specific institutional and structural conditions.
Taken together, the literature consistently establishes that the inflationgrowth nexus is non-linear, with
thresholds typically ranging from 4 to 10 percent depending on region, income status, and institutional context.
Moderate inflation may stimulate consumption and investment, but persistent inflation beyond the threshold
reduces purchasing power, heightens uncertainty, and hinders growth. Nigeria’s experience exemplifies this
latter case, where prolonged double-digit inflation, driven by structural weaknesses and policy failures, has
constrained economic performance (Anochiwa & Maduka, 2015; Idris & Suleiman, 2019). Consistent with prior
evidence, this study applying the OLS model for Nigeria (19702023), finds that inflation exerts a negative
impact on growth, particularly when it exceeds the identified threshold levels.
The structure of the paper is as follows: the first section provides a review of existing literature, highlighting
empirical studies on the link between inflation and economic growth. The second section describes the research
materials and methodology applied. The third section presents the theoretical framework, the dataset, and the
econometric methods adopted. This is followed by the presentation of empirical results, while the final section
concludes with key insights and policy recommendations drawn from the study.
DATA AND METHODOLOGY
This study employs annual time series data for Malaysia covering the period 1970 to 2023. Malaysia serves as
an appropriate case study given its sustained record of economic growth and the availability of reliable
macroeconomic data. The dependent variable is the real GDP growth rate (GDPG), measured as the annual
percentage change in real Gross Domestic Product. The primary independent variable of interest is the inflation
rate (INF), expressed as the annual percentage change in the consumer price index (CPI).
To capture a more robust macroeconomic environment and control for confounding effects, three additional
explanatory variables are incorporated into the model:
Interest rates (IR): representing the cost of borrowing and a proxy for monetary policy stance.
Gross fixed capital formation as a percentage of GDP (GFCA): reflecting the level of capital investment
in the economy.
Total reserves (TRO): capturing external buffer capacity and stability in international markets.
Data were obtained from authoritative sources, including the World Bank, Bank Negara Malaysia, and other
reputable global macroeconomic databases. The dataset was downloaded in CSV format, cleaned, arranged
chronologically, and imported into EViews 12 for econometric analysis. To address issues of heteroscedasticity
and non-normal distributions, all independent variables (INF, IR, GFCA, and TRO) were transformed into their
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natural logarithmic forms (lnINF, lnIR, lnGFCA, lnTRO). This transformation also facilitates interpretation of
the estimated coefficients in terms of elasticities, ensures linearity in parameters, and often improves forecasting
accuracy. The dependent variable (GDPG) was retained in its original percentage form, as it is already scaled
and interpretable.
The empirical model is specified in a semi-logarithmic functional form:
GDPG
t
= β
0
+ β
1
lnINF
t
+ β
2
lnIR
t
+ β
3
lnGFCA
t
+ β
4
lnTRO
t
+ u
t
(1)
where GDPGt is the real GDP growth rate, lnINF
t
, lnIR
t
, lnGFCA
t,
and lnTRO
t
are the natural logarithms of the
respective explanatory variables, β
0
is the intercept, β
1
…β
4
are the coefficients, and u
t
represents the error term
assumed to follow the classical linear regression assumptions.
The estimation technique employed is Ordinary Least Squares (OLS) regression, chosen for its effectiveness in
modeling linear relationships in time series data. Prior to estimation, the series were subjected to unit root tests
to ensure stationarity, and data plots were used for visual inspection of trends. After estimation, a series of
diagnostic tests were performed to validate the robustness of the model, including:
1. Linearity: Verified using residual plots.
2. Normality: The JarqueBera test, with a p-value above 0.05 indicating normally distributed errors.
3. Homoscedasticity: Assessed using the BreuschPagan and White tests.
4. Multicollinearity: Examined through Variance Inflation Factors (VIF), with values below 5 considered
acceptable.
5. Autocorrelation: Tested with the DurbinWatson statistic, where a value close to 2 indicates no serial
correlation.
6. Model Specification: Evaluated using the Ramsey RESET test to ensure no omitted variables or neglected
non-linearities.
The hypotheses for each explanatory coefficient are specified as follows:
H0: βi = 0 (no significant effect)
H1: βi 0 (significant effect)
From an economic perspective, the expected signs of the coefficients are:
1. β1<0: Higher inflation is anticipated to hinder economic growth by reducing purchasing power,
discouraging investment, and creating uncertainty.
2. β2<0: Higher interest rates are expected to dampen growth through higher borrowing costs.
3. β3>0: Greater capital formation should enhance productivity and stimulate growth.
4. β4>0: Larger reserves are associated with stronger external stability and increased investor confidence.
Through this structure, the study seeks to empirically evaluate the impact of inflation on Malaysia’s economic
growth while accounting for key macroeconomic variables. The results are expected to provide evidence-based
insights for macroeconomic policy formulation.
RESULTS AND DISCUSSION
The research focuses on detecting the correlation between inflation and economic growth in Malaysia. This can
be further explained where the case is about the impact of inflation on economic growth and on how it relates to
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the application of the Ordinary Least Squares (OLS) regression method under semi-logarithmic functional form.
In this case, the dependent variable is the GDP growth rate, and the independent variables include inflation,
interest rate, gross fixed capital formation (investment) and trade openness. Table 1 shows the empirical results
of the regression equation over the period 1970-2023.
Table 1: OLS regression, dependent variable is the annual GDP growth rate, GDPGₜ
Variable
Coefficient
Std. Error
t-statistic
P-value
Constant
-7.837745
6.819884
-1.149249
0.2560
lnINFₜ
2.968822
0.747637
3.970941
0.0002***
lnIRₜ
-0.979162
0.623978
-1.569224
0.1230
lnGFCAₜ
4.395105
0.556855
7.892731
0.0000***
lnTROₜ
0.570866
1.089359
0.524038
0.6026
0.666337
F-statistic
24.46365
Prop(f-statistic)
0.000000
Durbin-Watson stat
1.513500
Note. Data labeled with ***, **, * are significant at 1%, 5%, and 10% respectively.
The regression equation as specified in table 1 can be written as:
GDPGₜ = -7.837745 + 2.968822 lnINF − 0.979162 lnIRₜ +4.395105 lnGFCAₜ + 0.570866 lnTROₜ
The specification of the model above indicates that GDP growth in Malaysia is influenced by four main
independent variables, which is inflation (INF), interest rate (IR), gross fixed capital formation (GFCA), and
trade openness (TRO). This shows that each coefficient represents the elasticity of GDP growth with respect to
its corresponding variable, as the model uses a semi- log form (INX). This means that a 1% change in an
independent variable leads to a β % change in GDP growth, holding other variables constant.
The results produced in the table 1 significantly support our assumption where INF significantly increases the
GDP growth rate in Malaysia. This can be proven by starting with β1, inflation. As inflation (lnINFₜ) has a
positive and statistically significant impact on GDP growth. The coefficient for inflation is 2.968822, and it is
statistically significant with a p-value of 0.0002. This means that if inflation increases by 1%, holding other
variables constant, economic growth is expected to increase by approximately 2.97%. While this positive
relationship may appear contrary to traditional expectations, it suggests that inflation during the study period
may have reflected healthy demand or been managed within a productive economic environment, potentially
stimulating output and growth.
Furthermore, the coefficient for β2, interest rate (lnIRₜ) is -0.979162. This shows that it is not statistically
significant at the 5% level (p-value = 0.1230). This implies that although a 1% increase in interest rates is
associated with a 0.98% decrease in economic growth, the relationship is not strong enough statistically to
confirm a definitive impact in this model.
Meanwhile, the coefficient for β3, gross fixed capital formation (lnGFCAₜ) is 4.395105. Thus, it shows
statistically significant (p-value = 0.0000). This indicates that a 1% increase in investment is associated with a
4.40% increase in economic growth, assuming other factors remain constant. This strong positive impact
reinforces the importance of investment in physical capital such as infrastructure, equipment and technology in
driving Malaysia’s long- term economic performance.
Similarly, β4 trade openness (lnTROₜ) has a coefficient of 0.570866, indicating that a 1% increase in trade
openness may lead to a 0.57% increase in GDP growth, when other variables are held constant. However, with
a p-value of 0.6026, this effect is also not statistically significant. Although the direction of the relationship
aligns with economic theory that openness supports growth, the result suggests that trade may not have had a
consistent or strong direct influence on growth during the years observed.
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Finally, the estimated model shows an R-squared value of 0.6663, indicating that about 66.63% of the variation
in GDP growth can be explained by inflation, interest rate, gross fixed capital formation, and trade openness.
The F-statistic of 24.46 with a p-value of 0.0000 confirms that the overall model is statistically significant.
In summary, the regression results show that inflation and investment have a statistically significant and positive
effect on Malaysia’s economic growth, while interest rates and trade openness do not exhibit statistically
significant effects within this model. These findings highlight the dominant role of capital investment in driving
growth and suggest that inflation, under certain conditions, may coincide with periods of economic expansion.
Table 2: Normality test for the disturbance term
Mean
3.78e-15
St. Dev
2.202297
Jarqu-Bera
0.514704
p-value
0.773096
As can be seen from table 2, the results show a mean of 3.78e-15, which is extremely close to zero. This is ideal,
as a mean near zero indicates that the residuals are centred properly around the regression line. The standard
deviation is 2.2023, which measures how spread out the residuals are from the mean. A moderate standard
deviation such as this suggests that while some variation exists, it is within a reasonable range and does not
indicate abnormal dispersion.
The Jarque-Bera statistic is 0.5147, a very small value, indicating that the skewness and kurtosis of the residuals
do not differ much from a normal distribution. Most importantly, the p-value is 0.7731, which is well above the
5% significance level (α = 0.05). As a result, we fail to reject the null hypothesis, meaning there is no statistical
evidence that the residuals deviate from normality.
In summary, the residuals from the regression model can be considered normally distributed, as supported by
the low JB statistic, the high p-value, and supporting summary statistics. This finding confirms that the normality
assumption for OLS is met, making the model suitable for reliable inference and hypothesis testing.
Table 3: Breusch-Godfrey serial correlation LM test
Null Hypothesis: No serial correlation up to 2 lags
F-statistic
1.536646
Prob. F (2,47)
0.2257
Obs*R-squared
3.314298
Prob. Chi-Square (2)
0.1907
Breusch-Godfrey, Serial Correlation LM test was conducted to check for autocorrelation in the model residuals
at up to 2 lags. Both an F-statistic, 1.5366, p-value is 0.2257 and an Obs*R- squared statistic, 3.3143 and p-value
Chi-Square is 0.1907 were employed to check the null hypothesis of no serial correlation. Both p-values are
greater than the usual 0.05 significance level, we fail to reject the null hypothesis, indicating no serial correlation
between residuals at lag 1 or lag 2. Such a low R-squared level of 0.0614 in this auxiliary regression clearly
demonstrates that the lagged residuals do not account for much of the variation in current residuals. While the
Durbin-Watson statistic of 4.8326 might at first reading suggest potential autocorrelation problems, the more
powerful Breusch-Godfrey test overpowers this indication. The results our group has collectively demonstrate
that the model's residuals are not autocorrelated, validating that ordinary least squares estimation for this
regression is valid. The absence of serial correlation suggests the OLS estimators remain efficient and standard
errors are unbiased, requiring no adjustment through adding lagged variables or heteroskedasticity-
autocorrelation consistent standard errors.
Robust test procedures were conducted to confirm reliability and accuracy of the regression model, namely, the
absence of autocorrelation in residuals. Autocorrelation happens when error components within a regression
model are related over time, and this does not comply with the fundamental assumptions of the Ordinary Least
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Squares (OLS) model. Even though OLS estimators are unbiased when there is autocorrelation, the standard
errors might not be consistent thus, giving inappropriate statistical inferences. The Breusch-Godfrey Serial
Correlation LM Test was necessary to cover this issue as it is far more flexible than the Durbin- Watson test and
it enables the presence of serial correlation to be detected at higher-order lags.
Both p-values are larger than 0.05, thus we shall not reject the null hypothesis. With that, there is no evidence of
serial correlation among model residuals. Further, the regression output had Durbin-Watson statistic of 1.5135,
that is nearer ideal of 2. This leads to another finding that autocorrelation concern is not a problem in this model.
Table 4: Breusch-Godfrey test
Test Statistic
Value
P-Value
Decision
F- statistics
1.5366
0.2257
Fail to reject the null (H₀)
Obs*R-squared
3.3143
0.1907
Fail to reject the null (H₀)
H
0
: (Null Hypothesis): There is no serial correlation in 2 lags
H
1
: (Alternative Hypothesis): There is serial correlation
Both p-values are above 0.05 and hence we do not reject the null hypothesis thus there is no evidence of presence
of serial correlation in the model residuals. Also, the result of the Durbin- Watson statistics in the regression
output was 1.5135, almost near to the perfect value of 2. This also justifies the conclusion that there is no issue
of autocorrelation in this model. The lack of autocorrelation proves that the assumption of independent error
terms holds, which increases the reliability of standard errors and statistical estimates in the model. This was
because there were no indications of autocorrelation and, therefore, there was no need to apply robust standard
errors like the Newey-West standard errors which are usually applied in cases where heteroscedasticity or
autocorrelation exists. Moreover, other models’ specifications have also been considered during the creation of
the regression framework to provide consistency and strength of the results.
In general, the diagnostic checks indicate that the main assumptions of the regression model have been satisfied.
Along with the autocorrelation test, one can perform tests for multicollinearity (by checking the values of the
Variance Inflation Factor or VIF of 2 or less) and heteroscedasticity (checking the Breusch-Pagan test result with
p value > 0.05) to ensure that other typical estimation problems are not present in the model. The model has an
Adjusted R 2 of 0.6391, implying that the model explains approximately 64% of the variance in economic
growth. A combination of these diagnostic checks as well as the important predictors found in the regression
presents sufficient firsthand evidence that the model can be valid and that inflation and government expenditures
are important players in the growth of GDP in the context of a developing economy.
Table 5: Ramsey Reset Test
Value
DF
Probability
T - Statistic
0.640159
48
0.5251
F- Statistic
0.409804
(1, 48)
0.5251
Likelihood Ratio
0.459072
1
0.4981
The Ramsey Regression Equation Specification Error Test (RESET) was used to test the correct specification of
the regression model. The test is a valuable process of diagnosis that is applied in identifying possible errors of
model specification, including a possible omission of variable of interest, weaknesses in functional form or
incorrect transformations to the variables. Conversely put, the test verifies whether the model grasps the actual
relationship between the independent variables and the dependent variable, which in this case is GDP growth.
This result generated a t-statistic and F-statistic of 0.6402 and 0.4098 respectively that had a correlated p-value
of 0.5251. Moreover, the likelihood ratio statistic was 0.4591, and p-value was 0.4981. At 0.05, the standard
significance level, all p-values are above the critical value and thus we do not reject the null claim that the null
hypothesis that the model is correctly specified. This implies that there is no definite evidence that the model is
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prone to a specification error. This result implies that the form of a functional regression model seems to be
adequate, and no severe trace of omitted variable bias and structural challenges have been identified. As such,
we are satisfied that the model is well-formulated and statistically appropriate. The estimated slopes of inflation,
interest rate, government consumption and openness to trade are valid to explain the effect in the economy
growth.
Summing up, the results of the Ramsey RESET test support the validity of the regression model. This test,
together with others including the autocorrelation test (Breusch-Godfrey test), the multicollinearity and
heteroscedasticity tests, makes the model credible. Consequently, the regression analysis has given a sound
framework that can be used to explain the impact of key macroeconomic variables on economic growth with a
view to developing economies.
CONCLUSION AND IMPLICATION
The regression equation shows that inflation and economic growth relate significantly and positively implying
that in the environment of the study period, inflation has been a factor that has helped in the economic growth.
Nonetheless, the interest rate coefficient of negativity and its marginal irrelevance depicts that the positive impact
of interest rates on growth is mildly inhibited, but it is not fixed statistically. The most significant of the growth
drivers is the gross fixed capital formation, and it is possible to appreciate fully the role of investment in
enhancing economic growth. On the contrary, trade openness does not affect growth statistically.
The model is very fit, which can be proven by diagnostic tests. All the tests of serial correlation,
heteroskedasticity and normality of residuals suggest that there is no autocorrelation and homoskedasticity of
residuals, and there is a normal distribution of residuals. Moreover, the test of omitted variable bias implies that
the functional form of the model is not wrong.
To conclude, the discussion fetches out inflation and investment as the major factors that determine the economic
growth, as the model aptly passes core diagnostic test. These findings are insightful, but additional research,
which would include more variables or consider nonlinear relationships could improve the knowledge.
Meanwhile, the analysis Favors specific policies, which exploit the inflation control and capital development to
stimulate sustainable economic growth.
REFERENCES
1. Anochiwa, L. I., & Maduka, A. (2015). Impact of inflation on economic growth: evidence from Nigeria.
Investment Management and Financial Innovations, 17(2), 1-13. doi:
http://dx.doi.org/10.21511/imfi.17(2).2020.01
2. Anochiwa, L. I., & Maduka, A. C. (2015). Inflation and economic growth in Nigeria: Empirical evidence.
Journal of Economics and Sustainable Development, 6(20), 113121.
3. Aslam, A. (2016). Evaluating the Effects of Inflation on Economic Growth in South Africa. Journal of
Economics and Financial Analysis, 69-87.
4. Aslam, M. (2016). Impact of money supply on economic growth: A case study of Sri Lanka (19592013).
International Journal of Economics and Financial Issues, 6(5), 21302138.
5. Aslam, M. (2023). Uncertainty shocks and inflation-growth dynamics: Evidence from advanced and
emerging economies. Macroeconomics and Finance in Emerging Market Economies, 16(2), 119.
https://doi.org/10.1080/17520843.2023.2195738
6. Bick, A. (2010). Impact of Inflation on Economic Growth in Developing European Countries. Review
of Economics and Finance, 1389-1396.
7. Bick, A. (2010). Threshold effects of inflation on economic growth in developing countries. Economics
Letters, 108(2), 126129.
8. Central Bank of Nigeria. (2018). Statistical Bulletin. Abuja: CBN.
9. Chu, J. F., Sek, S. K., & Ismail, M. T. (2022). Inflationgrowth nexus: Evidence from panel smooth
threshold model analysis in different geographical region countries. Applied Mathematics and
Computational Intelligence, 11(1), 111.
www.rsisinternational.org
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INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN SOCIAL SCIENCE (IJRISS)
ISSN No. 2454-6186 | DOI: 10.47772/IJRISS | Volume IX Issue X October 2025
10. Dammak, B. Th., & Helali, K. (2017). Impact of Inflation on Economic Growth in Developing European
Countries. Review of Economics and Finance, 31(2), 1389-1396. doi:
https://doi.org/10.1080/10168737.2017.1289546
11. Dammak, T., & Helali, K. (2017). Inflation threshold and economic growth: Evidence from panel data.
International Journal of Economics and Finance, 9(3), 145155.
12. Eggoh, J., & Khan, M. (2014). On the nonlinear relationship between inflation and economic growth.
Research in Economics, 68(2), 133143.
13. Eggoh, J.C. & Khan, M. (2014). Evaluating the Effects of Inflation on Economic Growth in South Africa.
Journal of Economics and Financial Analysis, 69-87.
14. Ekinci, R., zün, O., & Ceylan, F. (2020). Inflation threshold and economic growth: Evidence from
inflation targeting countries. Economic Research-Ekonomska Istraživanja, 33(1), 187203.
https://doi.org/10.1080/1331677X.2019.1708766
15. Ekinci, R., Tüzün, O., & Ceylan, F. (2020). The relationship between inflation and economic growth:
Experiences of some inflation targeting countries. Financial Studies, 24(1), 6-20. Retrieved from
https://www.econstor.eu/handle/10419/231692
16. Espinoza, R., Leon, H., & Prasad, A. (2010). Estimating the inflationgrowth nexus: A smooth transition
analysis. IMF Working Paper No. 10/76. Washington, DC: International Monetary Fund.
17. Espinoza, R.A., Leon, H. & Prasad, A. (2010). Nonlinear Impact of Inflation on Economic Growth in
Nepal: A Smooth Transition Regression Approach. Nepal Public Policy Review, 236-260.
18. Gatawa, N. M., Abdulgafar, A., & Olarinde, M. O. (2017). Monetary variables and economic growth in
Nigeria. Journal of Finance and Accounting, 5(6), 203209.
19. Gatawa, N.M., Abdulgafar, A. & Olarinde, M.O. (2017). Evaluating the Effects of Inflation on Economic
Growth in South Africa. Journal of Economics and Financial Analysis, 69- 87.
20. Haa, J. (2024). The economic effects of global inflation uncertainty. International Journal of Central
Banking, 20(2), 93138. https://www.ijcb.org/journal/ijcb24q2a3.htm
21. Idris, M., & Suleiman, N. (2019). Fuel price increases and inflationary pressures in Nigeria. Journal of
Energy Economics and Policy, 9(3), 3744.
22. Idris, T. S., & Suleiman, S. (2019). Impact of inflation on economic growth: evidence from Nigeria.
Investment Management and Financial Innovations, 17(2), 1-13. doi:
http://dx.doi.org/10.21511/imfi.17(2).2020.01
23. Ismail, Noris Fatilla, & Suraya Ismail. 2021. The Nexus of Selected Macroeconomic Variables Toward
Foreign Direct Investment: Evidence from Indonesia. The Journal of Management Theory and Practice
(JMTP) 2 (4), 110-15. Available at: https://doi.org/10.37231/jmtp.2021.2.4.184
24. International Monetary Fund. (2023). World economic outlook, October 2023: Navigating global
divergences. Washington, D.C.: IMF.
https://www.imf.org/en/Publications/WEO/Issues/2023/10/10/world-economic-outlook-october-2023
25. Kusumatrisna, A. L., Sugema, I., & Pasaribu, S. H. (2023). Threshold effect in the relationship between
inflation rate and economic growth in Indonesia (Provincial data 19942019). Bulletin of Monetary
Economics and Banking, 25(1), 120.
26. Lubeniqi, G., A. H., & Kestrim Avdimetaj. (2023). Impact of Inflation on Economic Growth in
Developing European Countries. Review of Economics and Finance, 21(1), 1389 - 1396.
doi:https://doi.org/10.55365/1923.x2023.21.152
27. Mandeya, S. M. T., et al. (2022). Inflation, inflation uncertainty and the economic growth nexus: A
review of the literature. Folia Oeconomica Stetinensia, 22(1), 172190. https://doi.org/10.2478/foli-
2022-0009
28. Meliza, M. (2024). Effect of inflation on economic growth in Indonesia: The moderating role of
electronic money transaction. Proceedings of the 6th Social and Humaniora Research Symposium (SoRes
2024). KnE Social Sciences. Available from KNE Publishing.
29. Ndoricimpa, A. (2017). Impact of Inflation on Economic Growth in Developing European Countries.
Review of Economics and Finance, 1389-1396.
30. Ndoricimpa, A. (2017). Threshold effects of inflation on economic growth in Africa: Evidence from a
dynamic panel threshold regression approach. African Development Review, 29(3), 471484.
31. OECD. (2025). OECD economic outlook, volume 2025 issue 1. OECD Publishing.
https://doi.org/10.1787/1fd979a8-en
www.rsisinternational.org
Page 1441
INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN SOCIAL SCIENCE (IJRISS)
ISSN No. 2454-6186 | DOI: 10.47772/IJRISS | Volume IX Issue X October 2025
32. Pappas, A., & Boukas, N. (2025). Examining Impact of Inflation and Inflation Volatility on Economic
Growth: Evidence from European Union Economies. Economies, 13(2), 1-16. doi:
https://doi.org/10.3390/economies13020031
33. RBI. (2014). Nonlinear Impact of Inflation on Economic Growth in Nepal: A Smooth Transition
Regression Approach. Nepal Public Policy Review, 236-260.
34. Reserve Bank of India. (2014). Report of the Expert Committee to Revise and Strengthen the Monetary
Policy Framework. RBI, Mumbai.
35. Thanh, D. S. (2015). Impact of Inflation on Economic Growth in Developing European Countries.
Review of Economics and Finance, 1389-1396.
36. Thanh, S. D. (2015). Threshold effects of inflation on growth in the ASEAN-5 countries: Evidence from
panel smooth transition regression. Economic Modelling, 48, 93103.
37. Tung, L. T., & Thanh, P. T. (2015). Threshold in the relationship between inflation and economic growth:
Empirical evidence in Vietnam. Asian Social Science, 11(10), 105120.
38. U.S. Federal Reserve. (2025, January 16). The global transmission of inflation uncertainty. Board of
Governors of the Federal Reserve System. https://www.federalreserve.gov/econres/notes/feds-notes/the-
global-transmission-of-inflation-uncertainty-20250116.html
39. VoxEU. (2024, November 18). Economic activity gains traction amid easing inflation, but high
uncertainty looms over. CEPR. https://cepr.org/voxeu/columns/economic-activity-gains-traction-amid-
easing-inflation-high-uncertainty-looms-over