We present a stock market model that quantitatively replicates the joint behavior of stock prices, trading volume and investor expectations. Stock prices in the model occasionally display belief-driven boom and bust cycles that delink asset prices from fundamentals and redistribute considerable...

We investigate the impact of the French 2012 financial transaction tax on trading volumes and volatility. We extend empirical research by analyzing announcement and short-run treatment effects, migration effects, and long-run volatility measures. We find a strong short-run impact on trading...

We investigate the impact of the French 2012 financial transaction tax on trading activity, volatility, and price efficiency measured by first-order autocorrelation. We extend empirical research by analysing anticipation and reallocation effects. In addition, we consider measures for long-run...

Despite assumptions of mean-variance efficiency that underlie most asset pricing models, investors have shown a penchant for positive skewness. This study documents that the ratio of call option volume relative to total option volume is greatest for stocks with return distributions that resemble...

We develop a dynamic model of belief dispersion with a continuum of investors differing in beliefs. The model is tractable and qualitatively matches many of the empirical regularities in a stock price, its mean return, volatility, and trading volume. We find that the stock price is convex in...

We develop a dynamic model of belief dispersion with a continuum of investors differing in beliefs. The model is tractable and qualitatively matches many of the empirical regularities in a stock price, its mean return, volatility, and trading volume. We find that the stock price is convex in...

We examine the effects of limited investor attention on stock returns by using Google search volume index to measure investor attention. We also investigate whether national culture and market development have any role in this relationship. We find that the impact of investor attention on stock...

I study the causal effects of personal investment taxes on stock demand, stock returns, and the dividend policy of companies. I exploit a change in legislation in 2013 which allowed stocks listed on the Alternative Investment Market, a sub-market of the London Stock Exchange, to be held in a...

This paper studies the causal effects of personal investment taxes on stock demand, stock returns, and the financial decisions of companies. I exploit a change in legislation in 2013 which allowed stocks listed on the Alternative Investment Market, a sub-market of the London Stock Exchange, to...