Oil Price Shock

 The oil price shocks are an important source that affect on TOT in both oil exporting and importing countries. Hence, this paper compares the effects of real oil price shock on TOT in both oil importing and exporting countries, using Panel Data technique and during 1980-2010. To the best of our knowledge, we applied the nonlinear approach in order to assess the asymmetric impact of the oil price shocks on TOT. The results show that the oil price shocks influenced the TOT in the oil exporting and importing countries, differently. So that, in oil exporting countries, positive (negative) oil price shocks have significantly positive (negative) effect on their TOT, while in oil importing countries, positive (negative) oil price shocks have significantly a negative (positive) effect on TOT. Furthermore, the findings reveal that in the oil exporting countries, the effect of negative oil price shocks on TOT is more than positive oil price shocks. While, in oil importing countries, it is converse.JEL Classification: E64, F41

In this paper, we empirically investigate the relationship between oil price changes and output in a group of oil exporting countries. The dynamics of business cycles in Libya, Saudi Arabia, Nigeria, Kuwait, Venezuela and Qatar are modeled by alternative regime switching models. We show that the extension of uni-variate Markov Switching model in order to include oil revenue improves dating business cycles in these economies. For all countries, the optimal specification suggested by the data is to consider three cycles or regimes, namely, high growth, mild growth, and recession. These three regimes can be associated to high positive oil shock, mild positive oil shock and negative oil price shock. An interesting finding of the paper is that there is a variety of relationships between oil price shocks and business cycles. Thus, in order to see the effects of an oil price shock one should take into consideration the economic regime when the oil price shock hits the economy. Therefore, it is not possible to talk about a general relationship between oil price shocks and macroeconomic variables for all the main oil exporting countries. JEL Classification: E31, E32, E52, Q41

As one of the most important components of the financial market, the stock market plays a significant role in facilitating the transfer of financial resources to the productive sector; therefore, identifying the factors that influence this market and the response of this market to shocks that occur has always attracted the interest of policymakers and analysts. The present study focuses on the response of stock market returns of major oil-importing countries to the oil price shock, oil supply shock, and aggregate demand shock over the period 2010-2019 using the Panel Vector Autoregressive (PVAR) method. Based on the extracted impulse response functions (IRFs), the response of the stock market index to the oil price shock and the oil supply shock is negative, while the response of the stock market index to the aggregate demand shock is generally positive. The results of variance analysis show that the oil price shock, oil supply shock, and aggregate demand shock have the largest impact on the fluctuations of the stock market index, and indicate the selected oil-importing countries have taken measures to hedge their stock market against the oil price shock during the crisis period. JEL Classification: C58, E44, G10, Q43