We distill evidence about the effects of COVID-19 on companies. Stock price reactions to the shock differed greatly across firms, depending on their resilience to social distancing, financial flexibility, and corporate culture. The same characteristics affected the response of firms' sales,...

This paper presents the results of an empirical study concerning conventional and socially responsible mutual funds.We apply a sophisticated operations research algorithm embedded in inverse portfolio optimization on financial market data, ESG-scores and CRSP fund data. Due to our results we...

Over the past decade, investors and financial advisors have shown renewed interest in increasing international equity exposure. Investors confront one of two key issues in making decisions on their strategic allocations, depending on the starting point of their portfolios: 1) for a U.S.-only...

We show that internationally diversified portfolios carry sizeable political risk premia. We use a tail-risk portfolio selection model to obtain political efficient frontiers from skewed return distributions and manage political risk, and design an inference test to draw conclusions. We find...

We formulate and solve a multi-player stochastic differential game between financial agents who seek to cost-efficiently liquidate their position in a risky asset in the presence of jointly aggregated transient price impact, along with taking into account a common general price predicting...

This paper seeks to investigate the time-varying dynamic conditional correlations to the five most important future metal markets, namely Gold, Silver, Copper, Zinc and Aluminium. We employ a multivariate Fractionally Integrated Generalized ARCH (FIGARCH) dynamic conditional correlation (cDCC)...

This paper seeks to investigate the time-varying conditional correlations to the crude oil futures contract returns and the private Credit Default Swap market returns of Germany and France. We employ a dynamic conditional correlation (DCC) Generalized Auto Regressive Conditional...

Given a set of tick-by-tick data of five currency pairs we analyze several traditional asset allocation techniques as well as technical trading rule based models. In particular we explore appropriate levels of time aggregation and rebalancing frequencies. We also suggest a triggered...

This paper investigates the uncertainty about the trading costs associated with a given portfolio strategy. I derive accurate approximations of the ex ante probability distributions of proportional trading costs and portfolio turnover under the conventional assumption of normal asset returns....

This paper presents the results of an empirical study concerning conventional and socially responsible mutual funds.We apply a sophisticated operations research algorithm embedded in inverse portfolio optimization on financial market data, ESG-scores and CRSP fund data. Due to our results we...