We examine how media coverage of fluctuations in the price of agricultural commodities affects these prices and their volatility. We develop a unified empirical framework to analyze the media's effects on both returns and volatility using insights from the literature. We use daily prices of...

Exploiting NASDAQ order book data and difference-in-differences methodology, we identify the distinct effects of trading pause mechanisms introduced on U.S. stock exchanges after May 2010. We show that the mere existence of such a regulation constitutes a safeguard which makes market...

Exploiting NASDAQ order book data and difference-in-differences methodology, we identify the distinct effects of trading pause mechanisms introduced on U.S. stock exchanges after May 2010. We show that the mere existence of such a regulation constitutes a safeguard which makes market...

A key issue raised by the rapid growth of computerised algorithmic trading is how it responds in extreme situations. Using data on foreign exchange orders and transactions that includes identification of algorithmic trading, we find that this type of trading contributed to the deterioration of...

Speed matters: we show that an investor's optimal trading strategy is significantly different when he observes news faster than others versus when he does not, holding the precision of his signals constant. When the investor has fast access to news, his trades are much more sensitive to news,...

On February 12, 2010, SUERF, the Oesterreichische Nationalbank and the Bankwissenschaftliche Gesellschaft continued their established tradition of jointly organised conferences. As evidenced also by the 115 conference participants, this year's subject of "Contagion and Spillovers – New...

On February 12, 2010, SUERF, the Oesterreichische Nationalbank and the Bankwissenschaftliche Gesellschaft continued their established tradition of jointly organised conferences. As evidenced also by the 115 conference participants, this year's subject of "Contagion and Spillovers – New...

On February 12, 2010, SUERF, the Oesterreichische Nationalbank and the Bankwissenschaftliche Gesellschaft continued their established tradition of jointly organised conferences. As evidenced also by the 115 conference participants, this year's subject of "Contagion and Spillovers – New...

This paper empirically studied the model-free implied volatility indices constructed from options prices of the Nikkei 225 index during 2005-2010. The concept of corridor volatility index is compared and contrasted with the methodology of the famous VIX index developed by the Chicago Board...