Citizens, Autocrats, and Plotters: A Model and New Evidence on Coups D'État

We present a model of coups in autocracies. Assuming that policy choices cannot be observed but are correlated with the short-run performance of the economy we find that: (a) the threat of a coup disciplines autocrats; (b) coups are more likely in recessions; (c) increasing per capita income has an ambiguous effect on the probability of a coup. The implications of the model are consistent with the evidence. On average, one recession in the previous year increases the probability of a coup attempt by 47 percent. By contrast, the effect of the level of per capita income is weak.     

Cardinality-based equality of opportunities

We study possible rankings of opportunity profiles. An opportunity profile is a list of opportunity sets, one for each agent in the society. We compare profiles on the basis of the notion of “equality of opportunities”. Our main results show the necessary and sufficient conditions for this comparison to be made using exclusively the information provided by two cardinal measures: the number of common alternatives in all sets of a given profile and the difference between the number of alternatives in the individual sets. We also show that, under additional axioms, we can combine these criteria only in a weighted procedure or in some lexicographic refinements of a weighted procedure.      

Cooperative Credit in Spain: An Analysis of Credit Sections of Cooperatives

The long history and deep-rooted tradition of co-operative credit in Spain (credit co-operatives and credit sections of co-operatives) and the lack of detailed studies of the latter suggest the need to reflect on them and highlight their potential. This study examines the ways in which the credit sections can access the financial markets, describes their financial and economic structure and the sources of their income and expenditure and analyses their competitiveness in terms of efficiency.     

How do central banks react to wealth composition and asset prices?

We assess the response of monetary policy to developments in asset markets in the euro area, the US and the UK. We estimate the reaction of monetary policy to wealth composition and asset prices using: (i) a linear framework based on a fully simultaneous system approach in a Bayesian environment; and (ii) a nonlinear specification that relies on a smooth transition regression model.     

A critical overview of privacy-preserving approaches for collaborative forecasting

Cooperation between different data owners may lead to an improvement in forecast quality—for instance, by benefiting from spatiotemporal dependencies in geographically distributed time series. Due to business competitive factors and personal data protection concerns, however, said data owners might be unwilling to share their data. Interest in collaborative privacy-preserving forecasting is thus increasing. This paper analyzes the state-of-the-art and unveils several shortcomings of existing methods in guaranteeing data privacy when employing vector autoregressive models. The methods are divided into three groups: data transformation, secure multi-party computations, and decomposition methods. The analysis shows that state-of-the-art techniques have limitations in preserving data privacy, such as (i) the necessary trade-off between privacy and forecasting accuracy, empirically evaluated through simulations and real-world experiments based on solar data; and (ii) iterative model fitting processes, which reveal data after a number of iterations.     

Can unpredictable risk exposure be priced?

We study the link between beta predictability and the price of risk. An investor who desires exposure to a certain risk factor needs to predict what next period’s beta will be. We use a simple model to show that an ambiguity averse agent’s demand is lower when betas are hard to predict, leading to a reduction in risk premiums. We test the implications for downside betas and VIX betas. We find that they have economically and statistically small prices of risk once we account for the fact that an investor cannot observe ex-post realized betas when determining asset demand.