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Wage-Increment and Development of Black Economy in Nigeria: Influences of Inflation and Taxation

Journal of Advanced Research in Economics and Administrative Sciences , Volume 1, pp 141-153; doi:10.47631/jareas.v1i2.96

Abstract: Purpose: In this paper, wage-black economy relationship was examined while taking into consideration the influences of inflation and taxation. Approach/Methodology/Design: In particular, Value at Risk (VAR) approach was implemented using annually data for Nigeria covering the period 1990-2018 to assess the dynamic relationship among the variables. In light of national minimum wage in Nigeria, impulse response function was used to highlight the plausible responses from black economy to a shock of one standard deviation in each indicated variable. Findings: The result shows that a shock to national minimum wage (LOGMWA) will have a negative effect on black economy (LOGBEC) in Nigeria. Shocks to inflation (LOGINFL) will have a positive impact on black economy (LOGBEC). Shocks to tax (LOGATAX) will have asymmetric impacts on black economy (LOGBEC). The results were robust even when unemployment (LOGUEMP) was included. An unemployment shock was shown to enhance black economy in Nigeria. Practical Implications: The study is significant for the concerned authorities in Nigeria so that policy measures are taken and directed towards the causes that drive the black economy in the country. Originality/value: The impulse response function was estimated. It was estimated to show the plots of the responses from black economy (LOGBEC) to a one standard deviation shock in each indicated variable (national minimum wage (LOGMWA), inflation (LOGINFL), and tax (ATAX)). The shocks to national minimum wage (LOGMWA) will have a negative effect on black economy (LOGBEC) in Nigeria.
Keywords: Function / inflation / unemployment / Nigeria / Taxation / wage / minimum / Black Economy

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