This study complements existing literature by examining the nexus between energy consumption (EC), CO2 emissions (CE) and economic growth (GDP) in 24 African countries using a panel ARDL approach. The following findings are established. First, there is a long run relationship between EC, CE and GDP. Second, a long term effect from CE to GDP and EC is apparent, with reciprocal paths. Third, the ...

This study investigates the response of Chinese stock returns to oil prices amidst COVID-19 pandemic using both linear and nonlinear autoregressive distributed lag (ARDL) models. The results indicate that price Global Fear Index ( GFI ), respectively, affect positively negatively in short run. While asymmetry matters, do not respond changes long

This study examines the relationships between foreign aid, levels of schooling and democracy for Pakistan using the ARDL cointegration approach. The results of study provide strong evidence for fairly robust long run as well as short run relationships among these variables for the period 1973-2008. The results state that foreign aid and primary school enrollments have negative impact on democra...

The measurement conundrum seems to have plagued quantum mechanics for so long that impressions of an inconsistency amongst its axioms have spawned. A demonstration that such purported inconsistency is fictitious may then be in order and is presented here. An exclusion principle of sorts emerges, stating that quantum mechanics cannot be simultaneously linear and introspective (self-observing). D...

The Rational Expectations Permanent Income Hypothesis implies that consumption follows a martingale. However, most empirical tests have rejected the hypothesis. Those empirical tests are based on linear models. If the data generating process is non-linear, conventional tests may not assess some of the randomness properly. As a result, inference based on conventional tests of linear models can b...

This study examines the causal relationship between foreign direct investment and economic growth. Methodology is based on the Toda-Yamamoto test for causality relationship and the bounds testing (ARDL). Time-series data covering the period 19702005 for Malaysia, the study found, in the case of Malaysia there is no strong evidence of a bi-directional causality and long-run relationship between ...

Using recently proposed non-linearly realized supersymmetry in non-Abelian gauge theory corrected to O(α′), we derive the non-linear BPS equations in the background B-field for the U(2) monopoles and instantons. We show that these non-Abelian non-linear BPS equations coincide with the non-commutative anti-self-dual equations via the Seiberg-Witten map.