This paper uses proprietary data to evaluate the efficacy of single-stock circuit breakers on the London Stock Exchange during July and August 2011. We exploit exogenous variation in the length of the uncrossing periods that follow a trading suspension to estimate the effect of auction length on...

We question the impact of government guarantees on the pricing of default risk in credit and stock markets and, using a Merton-type credit model, provide evidence of a structural break in the valuation of U.S. bank debt in the course of the 2007-2009 financial crisis, manifesting in a lowered...

In response to the sharp decline in prices of financial stocks in the fall of 2008, regulators in a number of countries banned short selling of particular stocks and industries. Evidence suggests that these bans did little to stop the slide in stock prices, but significantly increased costs of...

We question the impact of government guarantees on the pricing of default risk in credit and stock markets and, using a Merton-type credit model, provide evidence of a structural break in the valuation of U.S. bank debt in the course of the 2007-2009 financial crisis, manifesting in a lowered...

This study examines the cross-sectional impact of the 2008 short sale ban on the returns of U.S. financial stocks. Motivated by the large cross-sectional variation in the extent to which banned stocks suffer an illiquidity shock, we hypothesize that stocks with larger liquidity declines are...

China launched a pilot scheme in March 2010 to lift the ban on short-selling and margin-trading for stocks on a designated list. We find that stocks experience negative returns when added to the list. After the ban is lifted, price efficiency increases while stock return volatility decreases....

The SEC is considering the imposition of a trade-at rule which requires venues not at the inside to either significantly improve on price or route to a venue that is quoting at the inside. The rule is expected to greatly reduce the internalization of order flow either directly or through dark...

We investigate possible reasons for voluntary delistings by U.S. firms from the Tokyo Stock Exchange from 1982 to 2005. We find that the small shareholder base, as measured by low turnover, for U.S. stocks in Japan helps to explain the voluntary foreign delistings. This finding is consistent,...

We document the changes in dynamic stochastic structure of the various industrial sectors of the Chinese A, B share markets and the Hong Kong share markets. We utilize a robustly estimated VECM-MV-GARCH model to test for possible co-integrating vectors between the market segmentations pre and...

In this paper, we examine stock exchange trading rules for market manipulation, insider trading, and broker-agency conflict, across countries and over time, in 42 stock exchanges around the world. Some stock exchanges have extremely detailed rules that explicitly prohibit specific manipulative...