Accurately calculated historical returns are critical inputs for investment decisions. We document that data vendors' adjustments to historical prices for dividends and stock splits result in inaccurate estimations of historical returns. We demonstrate several techniques that can be used to...

Under the CAPM assumptions, the market capitalization weighted portfolio is mean-variance efficient. In real world applications it has been shown by various authors that low risk portfolios outperform the market capitalization weighted portfolio. We revisit this anomaly using high-frequency data...

Nach dem Vorbild börsennotierter britischer Vereine wird es auch deutschen Profifußballvereinen in absehbarer Zukunft möglich sein, sich in Aktiengesellschaften umzuwandeln. Der anschließende Börsengang soll dann den nach den jüngsten Entwicklungen im Profifußballbereich gestiegenen...

Using a semi-supervised topic model on 7,000,000 New York Times articles spanning 160 years, we test whether topics of media discourse predict future stock and bond market returns to test rational and behavioral hypotheses about market valuation of disaster risk. Focusing on media discourse...

We examine a sample of 8,313 cases, between 1951 and 2001, where firms unexpectedly increase their research and development expenditures (Ramp;D) by a significant amount. We find consistent evidence that our sample firms are undervalued following their Ramp;D increases as manifested in the...

Takeover speculation may hurt productivity because uncertainty and threat of job loss cause anxiety, distraction, and reduced collaboration and morale among employees. Using a large panel of OECD-headquartered firms, we show that firm productivity temporarily declines after announcements of...

The aim of the paper is to analyze the effectiveness of Piotroski F-Score method for a selection of non-US markets (BRIC, UK, Germany), to identify the efficiency of this measure to generate Alpha. This study showed, that companies with high F-Score in non-US markets generate 8.2% (long...

Rank-and-file employees are becoming increasingly critical for many firms, yet we know little about how their employment dynamics matter for stock prices. We analyze new data from the individual CV's of public company employees, and find that rank-and-file labor flows can be used to predict...

We use the 2007 acquisition of Dow Jones & Co. by News Corporation to study whether the perception of a news source's political affiliation affects its credibility and financial market impact. Following 2007, the price of Republican- (Democrat-) aligned stocks becomes less sensitive to positive...

Using leverage to magnify performance is an idea that has enticed investors and traders throughout history. The critical question of when to employ leverage and when to reduce risk, though, is not often addressed. We establish that volatility is the enemy of leverage and that streaks in...