Internal Control Weaknesses,Family Ownership and the Cost of Debt: Evidence from the Tunisian Stock Exchange

ABSTRACT

This study investigates the effect of internal control weaknesses (ICW) and family ownership on the cost of debt in the Tunisian setting. We document that ICW and family ownership are positively associated with the cost of debt. When testing for the moderating effect of family ownership on the association between ICW and the cost of debt, we document that the positive effect of ICW on the cost of debt is more pronounced under high family ownership in the Tunisian setting. Furthermore, the positive and significant association between ICW and the cost of debt is more prevailing for firms audited by non-Big 4 auditors and industrial companies. These findings may have policy implications for Tunisian policymakers with respect to the establishment of internal control standards.     

A robust analysis of the relationship between renewable energy consumption and its main drivers

We provide a comprehensive and robust analysis of the drivers of renewable energy consumption for a panel of 64 countries, using both the static (Pooled OLS, Panel Fixed and Random Effects) and dynamic (difference and system GMM) panel data estimation approaches. We show that the dynamic panel data model provides more efficient estimators than the static ones and that increases in per capita CO₂ emissions and per capita trade with foreign partners mainly drive the changes in per capita renewable energy consumption. We also find limited evidence of oil price effects on renewable energy consumption, which reflects the fact that renewable energy is just a complement and not a perfect substitute of crude oil, at least in the short run.     

Threshold Effects on the Relationship Between Inflation Rate and Economic Growth in Tunisia

Using an econometric technique suggested by Hansen [(2001). The new econometrics of structural change: Dating breaks in U.S. Labor productivity. Journal of Economic Perspectives, 15, 117–128], this paper studies the inflation–economic growth nexus in the case of Tunisia for the 1993-01–2012-11 period. The results show that there is one inflation threshold value that does exist for Tunisia. This evidence strongly sustains the view that the relationship between inflation rate and economic growth is non-linear. The estimated threshold regression model suggests that a threshold value of inflation rate below 3.48% fosters economic growth. In addition, above this threshold level, there is a statistically significant negative relationship between inflation rate and economic growth. These results have important implications to policy-makers who should pay attention to the inflation phenomena. Therefore, a new policy that takes into account such a threshold should be set up.