This paper proposes two new approaches to improve estimation of the coefficients of the multivariate HAR (MHAR) model, and in turn improve forecast performance. A robust estimator of the covariance matrix is adopted to replace the realized covariance (RCov) matrix while estimating the MHAR...

In China, tobacco consumption is a leading risk factor for non-communicable diseases, and understanding the pattern of socio-economic inequalities of tobacco consumption will, thus, help to develop targeted policies of public health control. Data came from the China Health and Retirement...

Acquisition announcements generate predictable movements in the price of the acquirer's stock. For example, post-announcement returns are typically negative for high Tobin's q acquirers, stock transactions, and foreign targets, but positive for private equity-backed private targets....

Manuscript Type: EmpiricalResearch Question/Issue: This paper empirically examines whether there is pre-announcement movement of an acquirer's share price and trading volume prior to the announcement of acquisitions in ways consistent with insider trading. Prior papers focus on insider trading...

This paper examines the impact of stock liquidity on firm bankruptcy risk. Using the Securities and Exchange Commission decimalization regulation as a shock to stock liquidity, we establish that enhanced liquidity decreases default risk. Stocks with the highest default risk experience the...

This paper empirically examines business starts, deaths, venture capital and patents in relation to U.S. public policy. The most consistent evidence in the data shows that lower levels of labor frictions and higher levels of SBIR awards are associated with more business starts and higher levels...

This paper empirically examines business starts, deaths, venture capital and patents in relation to U.S. public policy. The most consistent evidence in the data shows that lower levels of labor frictions and higher levels of SBIR awards are associated with more business starts and higher levels...

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...

We examine product differentiation in the high-frequency trading (HFT) industry, where the “products” are secretive proprietary trading strategies. We demonstrate how principal component analysis can be used to detect underlying strategies that are common to multiple HFT firms, and show that...

This paper examines stock exchange trading rules for market manipulation, insider trading and broker agency conduct across countries and over time for 42 stock exchanges around the world. Some stock exchanges have extremely detailed rules which explicitly prohibit specific manipulative...