Tag Archives: Unit Root Test

Causality analysis between the energy consumption and economic growth in South Asia: An Evidence from Bangladesh (Published)

The objective of this study is to explore the causality between electricity use and economic growth of Bangladesh. By using the unit root and granger causality tests from 1971 to 2016, this study finds that energy consumption causes GDP growth in Bangladesh. However, our empirical findings indicate that GDP growth does not causes energy consumption indicating that there is an uni-directional causality between these two variables. The policy implication of the result is that Bangladesh need to pay special attention to utilize the energy consumption and identifying the alternative sources of energy generation in order to promote our economic growth.


Keywords: Economics Growth, Energy consumption, Granger Causality, Unit Root Test

Effect of Public Investment on Economic Growth in Bangladesh: An Econometric Analysis (Published)

Public investment traditionally holds the main structure of any economy. We consider annual development programme (ADP) is the main proxy for public investment in Bangladesh and also consider the gross capital formation for more reliable results. The link among GDP, PI and GCF are analyzed by our regression model, Ordinary Least Squares (OLS) method was used in estimation and we apply different statistical tools in order to know different statistical properties such as, we have used Ramsey’s RESET test for finding model misspecification. We also used the Jarque-Bera test for normality, Breusch-Pagan-Godfrey and White test for heteroscedasticity, the Durbin-Watson d test and the Breusch- Godfrey Serial Correlation LM Test for correlation, and Likelihood Ratio and the Wald test as specification. The variables were subjected to different unit root tests (ADF, PP, and KPSS) to justify stationary status. Though variables were non-stationary, the cointegration test (Engle Granger, CRDW, Johansen test) was conducted for long-run equilibrium as well as we use different types of tests to find out more reliable results. In addition, we checked the Granger Causality. From our study, we have seen that PI has positive effects on GDP in Bangladesh. According to our result, there is a positive impact of public investment on economic development. Findings point out that keeping the high public investment level in Bangladesh together with improvement in institutional surroundings would be beneficial for economic growth

Keywords: Co-Integration Test, Jarque-Bera Test, Public Investment, Unit Root Test, economic growth