This study employs boot strapping methods to estimate the distributions of individual security alphas generated from multi-factor models and compares them to empirical observations. I find that a small but sufficient number of positive and statistically significant alphas occurring above the...

By extending and reviewing determinants of the implied volatility in the context of high frequency (HF) trade-by-trade DAX equity options from the EUREX a mean-reversion autocorrelation process is revealed, besides confirming low frequency results such as moneyness, time, liquidity, volume and...

This paper studies the heterogeneous effects of the COVID-19 outbreak on stock prices in China and its hidden mechanisms from multi perspectives. First, we confirm the recent conclusion that the spread of the epidemic has a significant negative impact on stock market returns. However, this...

We estimate a model of damage to corporate earnings from COVID-19. A pandemic decreases earnings due to costly mitigation and lower growth rates. The arrival of a vaccine, modeled as a Poisson process, reverts earnings to normal. We fit our model to timely measures of expected damage given by...

We investigate the time variations of the relative risk aversion parameter of a U.S. representative agent using 60 years of stock market data. We develop a methodology to identify the variables that explain the variations of risk aversion, based on an asset pricing model without valuation (or...

This paper provides a measurement of framing effects in the stock market by using actual market open trading data, and provide a test of this new firm-special behavioral characteristic. We adopt univariate and bivariate portfolio-level analyses with seminal rational and behavioral factors, to...

Investor attention is central to explaining the mean-variance puzzle. Using Google Search Volumes as a proxy to attention, I document a positive trade-off during low attention periods that is significantly undermined when attention is high. The negative association between on-line searches and...

This paper attempts to estimate and study the role of 'other information', as posited in the residual income valuation model of Ohlson (1995), for tracking and predicting future returns of the S&P 500. 'Other information' is an unobserved variable and defined as a summary of value-relevant...

Hazard stocks are opposite of lottery stocks. We proxy hazard stocks with the minimum daily idiosyncratic return over the past month, a negative shock labelled IMIN, and examine the relation between hazard stocks and expected returns. The literature on lottery-stocks implies that investors...

We document that the variation in market liquidity is an important determinant of momentum crashes that is independent of other known explanations surfaced on this topic. This relationship is driven by the asymmetric large return sensitivity of short-leg of momentum portfolio to changes in...