We develop and implement methods for determining whether relaxing sparsity constraints on portfolios improves the investment opportunity set for risk-averse investors. We formulate a new estimation procedure for sparse second-order stochastic spanning based on a greedy algorithm and Linear...

The present note provides an initial theoretical explanation of the way norm regularizations may provide a means of controlling the non-asymptotic probability of False Dominance classification for empirically optimal portfolios satisfying empirical Stochastic Dominance restrictions in an iid...

This study examines how experiencing a pandemic affects household investment behaviors. By leveraging cross-state variations in the H1N1 mortality rate in 2009, our difference-in-differences analysis reveals interesting findings. Although the pandemic does not significantly affect stock market...

This paper fills a gap in research on private equity investments in emerging markets and developing economies. It provides descriptive evidence and examines the distribution of returns across sectors such as finance, technology, and resource-intensive industries like mining, where significant...

Climate-linked bonds, issued by governments and supranational organizations, are pivotal in advancing towards a net-zero economy. These bonds adjust their payoffs based on climate variables such as average temperature and greenhouse gas emissions, providing investors a hedge against long-term...

For the Engineered Living Materials (ELMs) portfolio to be productive, the Programme Manager for Health & Biotech designed and developed a Strategy Plan (SP) together with representatives from the portfolio projects as well as oversee the implementation of portfolio activities set in the SP.

For the Engineered Living Materials (ELMs) portfolio to be productive, the Programme Manager for Health & Biotech designed and developed a Strategy Plan (SP) together with representatives from the portfolio projects as well as oversee the implementation of portfolio activities set in the SP.

We utilize Bayesian model averaging to estimate a stochastic discount factor (SDF) for single-stock options. A Bayesian model averaging SDF outperforms reduced-form benchmark models in-sample and out-of-sample in pricing option return anomalies and portfolios. We document that the SDF is dense...

This paper investigates how investors' abnormal attention affects the cross-section of cryptocurrency returns in the period from 2018 to 2022. We capture abnormal attention using the (log) number of Twitter posts on individual cryptocurrencies on the current day minus a 30-day average. Our...

Heterogeneous beliefs among market participants can lead to questionable speculative trading that goes beyond any risk-sharing motives. We demonstrate that such unwarranted betting behavior in market equilibrium can be mitigated by introducing nonlinear pricing for ambiguous contracts, without...

The economic literature has long attributed non-zero expected excess returns in currency markets to time-varying risk premiums demanded by risk-averse investors. This paper, building on Bacchetta and van Wincoop's (2021) portfolio balance framework, shows that such returns can also arise when...

This paper reexamines the question of gender differences in financial relative risk aversion using updated methods and data. Specifically, the paper revisits the 1998 work "Are women more risk averse?" by Jianakoplos and Bernasek, suggests refinements in their model in relation to the database...

We study the implications of deviations from covered interest rate parity for international capital flows using novel data covering euro-area derivatives and securities holdings. Consistent with a dynamic model of currency risk hedging, we document that investors' holdings of USD bonds decrease...