This paper examines the risk premium associated with the information shocks in equity markets. For all stocks traded in Borsa Istanbul between March 2005 and December 2020, we calculate information shocks as the unanticipated information asymmetry by focusing on the changes in the proportion of...

In this work, we apply our newly proposed perturbative expansion technique to a quadratic growth FBSDE appearing in an incomplete market with stochastic volatility that is not perfectly hedgeable. By combining standard asymptotic expansion technique for the underlying volatility process, we...

Are options on exchange-traded products (ETPs) and indexes consistently priced internationally? The cross-section of international option returns exhibits a mispricing by sorting on ex-ante volatility returns. In addition, selling international ETP options and buying their corresponding index...

This paper proposes an alternative model to Brownian-type models for high frequency market price processes which is much closer to reality and thus more appropriate for use in process behavior and optimization research. The proposed model is a modified Poisson process

This article aims to extend evaluation of the classic multifactor model of Carhart (1997) for the case of global equity indices and to expand analysis performed in Sakowski et. al. (2015). Our intention is to test several modifications of these models to take into account different dynamics of...

This paper empirically estimates a heterogeneous agents model using S&P 500 data. While previous studies on heterogeneous agents models typically resort to simulation techniques, our empirical results indicate that the market is populated with fundamentalists, chartists, and noise traders. In...

Stock prices aggregate the beliefs of different investors. Using this insight, we estimate the fraction of stock market investors holding survey beliefs. We find that 42% of investors hold beliefs matching those of equity analysts and 25% hold beliefs as observed in individual investor return...

We zero in on the expected returns of long-short portfolios based on 120 stock market anomalies by accounting for (1) effective bid-ask spreads, (2) post-publication effects, and (3) the modern era of trading technology that began in the early 2000s. Net of these effects, the average anomaly's...

We use 92,632,873 daily returns for 33,010 US firms to establish the best forecasting model for realized idiosyncratic variances. Comparing forecasts from 10 different models, we find that the most popular models, the martingale and GARCH type models, perform worst. Using the...