What are the dominant stocks which drive the correlations present among stocks traded in a
stock market? Can a correlation analysis provide an answer to this question? In the past, …

Much effort has been devoted to assess the importance of nodes in complex networks. Examples
of commonly used measures of node importance include node degree, node centrality …

Background The 2007–2009 financial crisis, and its fallout, has strongly emphasized the
need to define new ways and measures to study and assess the stock market dynamics. …

We present a novel approach to the study the dynamics of stock market correlations. This is
achieved through an innovative visualization tool that allows an investigation of the structure …

The relationship between a market index and its constituent stocks is complicated. While an
index is a weighted average of its constituent stocks, when the investigated time scale is one …

Financial markets are modular multi-level systems, in which the relationships between the
individual components are not constant in time. Sudden changes in these relationships …

Testing for long-run abnormal performance has become an increasingly important part of
the finance literature. We propose a test for abnormal performance in long-run event studies …

This article examines the question of whether a “deep market” for tradable corporate bonds
exists in Israel, as defined in the international accounting standard (IAS-19) dealing with …

This research tests the impact of the nomination of designated market makers in various market
conditions. We explore the effect of such announcements on three dimensions: liquidity, …

The Israeli corporate bond market is highly transparent and predominantly traded on the Tel
Aviv Stock Exchange (TASE) continuous limit order book. Two thirds of the face value of the …