In a global economy, shocks occurring in one market can spill over to other markets. This paper investigates the impact of oil shocks and stock markets crashes on correlations between stock and oil markets. We test changes in correlations at different scales with non-overlapping confidence intervals based on estimated wavelet correlations. Contrary to other approaches, this method does not need...

E nergy analysts sometimes speak of oil’s “golden era,” that 100-year stretch between 1874 and 1974 when the real price was relatively stable within a range from $10 to $20 per barrel (BP, 2008) in 2007 dollars. Figure 1 shows that in recent decades, that stability has ended. In October 1973, several Arabic members of the Organization of the Petroleum Exporting Countries (OPEC) announced that i...

This study initially calculates export sophistication of Middle East and North Africa (MENA) countries to 
 make a comparison in the region between OPEC non-OPEC for 2004-2016 period. Secondly, short long run empirical analysis are applied examine effect on GDP per capita growth controlling several macroeconomic variables. Lastly, panel VAR is utilized decompose variation rate. Empirical f...

This article examines the real convergence hypothesis in OPEC countries (Algeria, Angola, Ecuador, Gabon, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, United Arab Emirates and Venezuela) using time series techniques and allowing for structural breaks. The main results show lack of support for income convergence in OPEC countries. We only find evidence of catch-up with the...

This article provides empirical evidence on the zero-leverage phenomenon for a sample of European listed firms period 1995–2016. It is shown that there are two types with zero leverage: financially constrained face obstacles in obtaining external finance, as predicted by financial constraints hypothesis; and unconstrained maintain leverage consequence financing decision, which supports flexibil...

We estimate the effects of unexpected changes in oil prices on output for the case of Venezuela, an oil-exporting economy. Following Hamilton (2003), Lee et al. (1995), and Mork (1989), we estimate measures of oil shocks and determine the effect of these shocks on the Venezuelan economy. Our results suggest that oil shocks have had positive and significant effects on output growth in Venezuela ...

the organization of the petroleum exporting countries (opec) has a key role in making universal political and economic decisions regarding petroleum. therefore, it seems highly important to assess the opec member’s degree of concentration and its monopoly.  this research, aims to assess and classify the concentration of petroleum export in the opec countries during the 1997-2011 period by the h...

Balance-sheet data offer a potentially large number of candidate predictors of corporate financial failure. In this paper we provide a novel predictor selection procedure based on non-parametric regression and classification tree method (CART) and test its performance within a standard logit model. We show that a simple logit model with dummy variables created in accordance with the nodes of es...