George Tweneboah, M. Asamoah, Peterson Owusu Junior
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Abstract
ABSTRACT This study sets out to explore the predictability of global foreign exchange rates vis-à-vis the South African rand using daily nominal exchange rates from January 2010 to February 2018. The estimation techniques include automatic portmanteau test, wild bootstrap variance ratio test, Dominguez–Lobato test for martingale difference hypothesis, and generalized spectral tests. We investigate the time-varying predictability by employing the fixed-length rolling window approach. The full sample results indicate significant predictability of some exchange rates while some suggest no predictability. The rolling window approach established that all the foreign exchange markets go through episodes of significant predictability and episodes of unpredictability. The currency investment space is dynamic and that makes it imperative for market participants to be adaptable.
期刊介绍：
Journal of African Business is the official journal of the Academy of African Business and Development, the largest network of professionals committed to advancement of business development in African nations. JAB strives to comprehensively cover all business disciplines by publishing high quality analytical, conceptual, and empirical articles that demonstrate a substantial contribution to the broad domain of African business. Regardless of the research context, tradition, approach, or philosophy, manuscripts submitted to JAB must demonstrate that the topics investigated are important to the understanding of business practices and the advancement of business knowledge in or with Africa. Particularly, JAB welcomes qualitative and quantitative research papers. JAB is not, however, limited to African-based empirical studies. It searches for various contributions, including those based on countries outside Africa that address issues relevant to African business. Targeted toward academics, policymakers, consultants, and executives, JAB features the latest theoretical developments and cutting-edge research that challenge established beliefs and paradigms and offer alternative ways to cope with the endless change in the business world. Covered areas: Accounting; Agribusiness Management and Policy; Business Law; Economics and Development Policy; Entrepreneurship and Family Business; Finance; Global Business; Human Resource Management; Information and Communications Technology (ICT); Labor Relations; Marketing; Management Information Systems (MIS); Non-Profit Management; Operations and Supply Chain Management; Organizational Behavior and Theory; Organizational Development; Service Management; Small Business Management; Social Responsibility and Ethics; Strategic Management Policy; Technology and Innovation Management; Tourism and Hospitality Management; Transportation and Logistics
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