Olaolu Richard Olayeni

Renewable and nonrenewable energy production and economic growth in sub-Saharan Africa: a hidden cointegration analysis

The objective of this article is to investigate the hypothesis of asymmetric effects between economic growth and renewable and nonrenewable energy production. To this end, both the linear cointegration and the hidden cointegration methodology are employed, with the latter allowing a straightforward delimitation of the data in an economically sensible way. We test for the presence of hidden cointegration across 12 sub-Saharan African countries spanning the period 1971–2011. The empirical results confirm the growth hypothesis for a subset of countries, suggesting that their growth could be adversely affected by conservation policies, while for a second subgroup of countries they confirm the conservation hypothesis, indicating that conservation policies could enhance the growth process in these countries. The differentiation of the results could be captured entirely by the linear approach, indicating that the lack of cointegration between renewable energy production and economic growth found in previous studies may be due to failures to properly delimit the nonlinearity property in the data.

Testing for the Feldstein-Horioka hypothesis in Asia using wavelet analysis

ABSTRACT We investigate the Feldstein-Horioka (1980) puzzle using a novel time-frequency approach. The wavelet-based retention and correlation coefficients are estimated for a cross-section of 15 Asian countries over the period 1972–2016. The countries are grouped as OCED countries (Japan and South Korea), least developed countries (like Bangladesh and Nepal), the large countries (like India and China), and the small countries (like Sri Lanka and Pakistan). Our approach reveals some interesting insights on the relationship between investment and saving rates and investment and current account deficits.

A Small Open Economy Model for Nigeria: A BVAR - DSGE Approach

Motivated by the way a small open economy should react to business cycles, we have estimated a small open economy (SOE) model for Nigeria. This is with a view to understanding how the Nigerian economy should be managed in the face of a cycle such as the current global meltdown. Our SOE model is used to generate dummy observation priors for the VAR in line with the BVAR-DSGE technique. We consider four monetary policy rules and estimate each of the resulting models using DYNARE 4.0.2. We find that the Central Bank of Nigeria (CBN) places little weight on the exchange rate behaviour in reacting to the cycles, resulting in overshooting and persistence in the exchange rate but strongly reacts to the behaviour of inflation and, to a lesser degree, of output, output gap or its growth following the shocks. We conclude that it will be important for the CBN to pursue a guided exchange rate policy by actively responding to the exchange rate movement to avoid overshooting and persistence, that the terms of trade must be endogenize and that there is scope for the CBN to learn from past policy outcome by building a much stronger feedback.