Bitcoin is a major virtual currency. Using weekly data over the 2010-2013 period, we analyze a Bitcoin investment from the standpoint of a U.S. investor with a diversified portfolio including both traditional assets (worldwide stocks, bonds, hard currencies) and alternative investments...

Economists have been blamed for their inability to forecast and address crises. This paper attributes this inability to intertwined factors: the lack of a coherent definition of crises, the reference class problem, the lack of imagination regarding the nature of future crises, and sample...

The literature has not reached a consensus yet regarding the existence of sovereign creditor moral hazard. Exploiting an exceptional historical example, this paper proposes an original method to address this issue. As the corona which are observable only during a total eclipse of the sun,...

Prices of repudiated bonds are insightful but scarcely observed. Based on an original daily database, this paper compares the price evolution from January 6, 1916 to August 31, 1919 of a cross-listed (Paris and London) Tsarist bond repudiated by the Soviets on February 8, 1918. After its...

The market portfolio efficiency remains controversial. This paper develops a new test of portfolio mean-variance efficiency relying on the realistic assumption that all assets are risky. The test is based on the vertical distance of a portfolio from the efficient frontier. Monte Carlo...

Addressing crises raises a sharp reference-class problem in economics. Namely, economic theory lacks an inclusive and consistent classification of crises. This problem stems from the fact that economists tend to adapt their views on crises to recent episodes, and omit averted and potential...

Art is often used as an investment vehicle. Given the importance of market efficiency in finance, we use a large auction-based index to test whether the art market is weakly efficient. Evidence reveals that returns on artworks exhibit high positive auto-correlation. We attribute this result to...

This paper investigates the informational efficiency of bond markets when investments are constrained by financial repression. To assess informational efficiency, this paper performs weak-form efficiency tests on the most liquid bond traded in Italy during the war. Surprisingly, the bond market...

The financial underperformance of art as an investment is well documented. In contrast to studies conducted on peace-time periods, this paper shows that the art market in occupied France during WWII significantly outperformed all alternative investments (bonds, equities, as well as currencies...

This paper analyzes, on basis of an original database of close to 3 000 canvasses sold during the war in Drouot, the main French auction house, the evolution of the art market in occupied France. Based on hedonic regressions, it shows that by all standards the market experienced a massive boom....