Impact of trade liberalization on technical efficiency of mining sector: A case of selected SADC countries

The main goal of the article is to analyze the role and influence of economic freedom on macroeconomic stability. For this purpose, the authors used the integrated index of economic freedom, calculated by the Heritage Foundation and Democracy Index. It is noted that this index indicator was calculated by the experts from the World Bank using the index of voice and accountability. In the paper, the authors used the multinational panel dataset for 11 countries of the EU for the purpose of checking the correlation between economic freedom, democracy and macroeconomic stability. It should be highlighted that the abovementioned 11 countries are related by the fluctuation of economic growth during the transformation process (1996–2016) from communist party to the democracy and political pluralism. In addition, the authors proposed to add the indicators of political stability and trade openness, which allowed to take into account implementation of flexible macroeconomic instruments, including monetary policy, which towards increasing the economic growth, employment and financial development of the countries. The findings are directed received using the regression equation with fixed and random effects showed the high level of correspondence of the model used with the original observations. Despite the chosen approach to estimate the macroeconomic stability, the findings showed that there is a positive and statistically significant impact of economic freedom and democracy on macroeconomic stability.

Africa has underdeveloped stock markets that have failed to meet the continent’s capital needs, such as rapid economic growth. This research analyzes the key drivers of stock market development in Africa from a macroeconomic perspective. The study examines several macroeconomic variables, including credit to the private sector, foreign direct investment, external reserves, money supply, external trade, per capita GDP, inflation, and lending rate to explain stock market development in Africa. The study builds a panel data consisting of eight African countries from 1994 to 2018 and applies the pooled mean group estimation technique. The analysis shows that in the long run, credit to the private sector, external reserves, and inflation are the most important factors that influence stock market development, while in the short run, income and trade openness are significant in explaining stock market development in Africa. The study recommends that policies to develop African stock markets should center on developing the private sector through access to credit, increased per capita income, and effective foreign reserve management to boost local and foreign investors’ confidence.

The design, implementation, and evaluation of energy policies in combating climate change are becoming increasingly evident to strengthen economic growth driven by the agricultural sector in most developing countries. The study analyzes the direct and indirect effects of renewable energy consumption (REC) on agriculture value-added (AgVA), CO2 emissions, and trade openness in the short- and long-run in the West African countries. The second-generation panel unit root tests, the panel cointegration methods, and Panel Vector Error Correction Model are used with World Bank data from 1990 to 2015. A panel Granger causality test was also used to determine the direction of causality between variables. Findings show a unidirectional relationship between AgVA, CO2 emissions, and REC; between REC, gross fixe capital formation (GFCF) and trade openness. Moreover, the bidirectional hypothesis is verified between agricultural development and trade openness. However, the null hypothesis is found between AgVA and GFCF, on the one hand, and GFCF and CO2 emissions, on the other hand. These results suggest that fostering renewable energy policy and revisiting trade policy toward reducing environmental pollution will enable agricultural development and boost the regional economy.

Acknowledgment
The author wants to thank Dr. Moukpè GNINIGUE for his technical supports and Prof. Jean Marcelin Bosson BROU from the University of Houphouet Boigny (Cote d’Ivoire), Dr. Odzadifo K. WONYRA and Dr. Hodabalo BATAKA from the University of Kara, Dr. Koffi Massesso ADJI from the West African Sciences Services Centre on Climate Change and Land Use (University of Cheikh Anta Diop, Dakar) and Essotanam MAMBA from the University of Lomé for their constructive comments on the earlier version of this manuscripts. Finally, the author is grateful to the anonymous reviewers and Editor-in-Chief of Environmental Economics, whose comments have improved this paper. However, the opinions expressed in this paper are solely those of the author.