Zaman serisi analizi ile borsa endeksinin gelecek degerlerini ongorme, finans alaninda oldukca ilgi goren bir konudur. Borsa endeks ongorusu icin kullanilan farkli zaman serisi yontemleri bulunmaktadir. Bu yontemlerden biri, son yillarda bircok arastirmada kullanildigi gorulen Yapay Sinir Aglari...

We study the possibility of completing data bases of a sample of governance, diversification and value creation variables by providing a well adapted method to reconstruct the missing parts in order to obtain a complete sample to be applied for testing the ownership-structure / diversification...

Patton and Timmermann (2012, 'Forecast Rationality Tests Based on Multi-Horizon Bounds', <I>Journal of Business & Economic Statistics</I>, 30(1) 1-17) propose a set of useful tests for forecast rationality or optimality under squared error loss, including an easily implemented test based on a...</i>

The paper is dedicated to the methodology of calculation, description of the properties and practical appliance of the realized volatility estimation, and its usage in the VaR calculation. The aim of the research is comparing of the realized volatility calculation methods, some of them are...

We introduce in this paper a testing approach that allows checking whether two financial institutions are systemically equivalent, with systemic risk measured by CoVaR (Adrian and Brunnermeier, 2011). The test compares the difference in CoVaR forecasts for two financial institutions via a...

We propose a methodology that can efficiently measure the Value-at-Risk (VaR) of large portfolios with time-varying volatility and correlations by bringing together the established historical simulation framework and recent contributions to the dynamic factor models literature. We find that the...