The effect of the establishment of an organized exchange on weak form efficiency: the case of Istanbul Gold Exchange

Evidence is presented from IGE (the Istanbul Gold Exchange) that an institutional regulation such as the establishment of an organized exchange is an important component of informational efficiency that should not be disregarded in the process of financial liberlization.     

Temporal dimension and equilibrium exchange rate: A FEER/BEER comparison

This paper investigates the temporal links between two models of equilibrium exchange rate, namely the behavioral and the fundamental approaches. Our results show that, even though in the long-run they are closely related, important differences are observed for some countries and/or some periods. Contrary to previous contributions, we analyze the factors that explain this disconnection. We outline structural changes in matter of competitiveness, the dynamics of foreign assets and valuation effects as explanations. This novel evidence is important if the two approaches for assessing misalignments are used for policy decisions such as setting tariffs to cope with the “currency war”.     

Linkage between international trade and economic growth in GCC countries: Empirical evidence from PMG estimation approach

This paper explores the empirical evidence of the links between economic growth and openness to international trade by controlling for auxiliary variables in the model for the six Gulf Cooperation Council (GCC) countries over the annual sample period 1980–2010. After testing for cointegration based on a recent bootstrap panel test, we employ the Pooled Mean Group (PMG) estimation technique of M.H. Pesaran, Y. Shin, and R. Smith (1999. “Pooled Mean Group Estimation of Dynamic Heterogeneous Panels”. Journal of the American Statistical Association 94: 621–634) that is appropriate for drawing sharper conclusions in dynamic heterogeneous panels by considering long-run equilibrium relations. The results show evidence of cointegration relationship between the variables of interest, and reveal that economic growth responds positively to trade openness over both the short run and long run. The evidence is robust to using various trade openness measures and to alternative model specifications, suggesting thus the non-fragility of the linkage between economic growth and openness to international trade for the GCC region. Our findings are then promising and support the view that economic growth is directly and robustly linked to trade openness for the GCC countries.     

Detecting multiple breaks in time series covariance structure: a non-parametric approach based on the evolutionary spectral density

This article estimates the number of breaks and their locations in the covariance structure of a series based on the evolutionary spectral density and uses some standard information criteria. The adopted approach is non-parametric and does not privilege a priori any modelling of the series. One carries out a Monte Carlo analysis and an empirical illustration using the daily return series of exchange rate euro/US dollar to support the relevance of the theory and to produce additional insights. The simulation results are globally adequate and show that the criteria having heavy penalty are more accurate in the selection of the number of breaks. The empirical results indicate that the covariance structure of the return series considerably varies between 30 March 2000 and 6 April 2001. The unconditional volatility appears non-constant over this interval.     

Empirical evaluation of nominal convergence in Czech Republic, Poland and Hungary (CPH)

We estimate a four variable structural vector auto regression (SVAR) model of the Czech Republic, Poland and Hungary economies in order to evaluate the links between the instruments of monetary policy and inflation outcomes. We find that the linkages between the interest rates and price levels are weak. However, the exchange rate constitutes the most important channel of monetary policy transmission for Poland and Hungary. For the Czech Republic, the link between interest rate rise and price level is rather indirect.     

Regime switching in the reactions of stock markets in Saudi Arabia to oil price variations

The study revisits the stock–oil nexus by examining the reactions of equity markets to oil price shocks at national and sectoral levels for Saudi Arabia in a time‐varying framework by employing the Markov switching EGARCH model developed by Henry (2009, Journal of Banking and Finance, 33, 405). Based on weekly data, the findings reveal that the behaviour of all stock markets switches between an expansion regime and a recession regime, with more persistence for the expansion state. Additionally, influential international events associated with stock market drops are clearly identified in the recession regime. Furthermore, there is evidence of asymmetric reactions of the equity index returns and the probabilities of transition from one state to another to oil price variations, with heterogeneous impacts across sectors and regimes. The stock markets are more sensitive to oil price decreases than to oil price increases. Although the evidence of relatively slight differences in some findings across weekdays, the study allows investors and policymakers to understand well the interactions of stock sector markets vis‐à‐vis the world oil market in a regime‐switching framework, in order to make the right decision as regards portfolio diversification and regulation of the stock markets.