We address the problem of choosing a portfolio of policies under “deep uncertainty.” We introduce the idea of belief dominance as a way to derive a set of non-dominated portfolios and robust individual alternatives. Our approach departs from the tradition of providing a single recommended...

While international portfolios are still heavily biased towards home assets, the home bias has exhibited a clear downward trend in the last few decades. Interestingly, the underlying rise in foreign investment has been primarily directed to just a handful of OECD countries, and has not given...

Using a novel sample of professional asset managers, we document positive incremental alpha on newly purchased stocks that decays over twelve months. While managers are successful forecasters at these short-to-medium horizons, their average holding period is substantially longer (2.2 years)....

This paper investigates market-wide risk aversion in an international setting. Particularly, this empirical study evaluates risk aversion spillover dynamics as an uncertainty transmission mechanism for the period 2000-2015 to reveal if there has been a significant change in these dynamics when...

We derive and interpret the mathematical principles for portfolio selection. We show these principles not only guarantee efficiency and value-adding, but also ideally address Treynor and Black (1973)’s long-standing normative call for reconciling subjective analyst views with objective...

The venture industry relies extensively on convertible contracts that allow VCs to convert their investments into an equity stake or a fixed debt position at a future date. We study convertible venture investments exposed to failure risk and valuation uncertainty using a double-hazard framework...

Trusting behavior has been shown to affect households' portfolio choice between risky and risk-free financial assets. We extend the analysis of the effect of trust on portfolio choice to include the dominant component of households' portfolios, real estate. In a simple model, we show how the...

We use two administrative data sets, from a large internet broker and from a major commercial bank, together with regional data to ask three questions: (i) whether financial advisors tend to be matched with poorer, uninformed investors or with richer, experienced but presumably busy investors;...

We estimate a structural model of herding behavior in which feedback arises due to mutual concerns of traders over the unobservable "true" level of market liquidity. In a herding regime, random shocks are exacerbated by endogenous feedback, producing a dampened power-law in the fluctuation of...

We use two data sets, one from a large brokerage and another from a major bank, to ask: (i) whether financial advisors are more likely to be matched with poorer, uninformed investors or with richer and experienced investors; (ii) how advised accounts actually perform relative to self-managed...