The development of renewable energy sources is central to the goal of gaining independence from conventional fossil fuels and achieving a sustainable energy supply. As these technologies are not yetfully developed and due to multi-dimensional selection environments cannotalwayscompete with...

This paper discusses the development of Euroscepticism in France and the underlying actors and causes. First, the literature review presents a selection of distinct classifications, actors and sources for the analysis. Thus, the distinction between hard and soft Euroscepticism as well as diffuse...

Increasing inequality and associated egalitarian sentiments have again put redistribution on the political agenda. Support for redistribution may also be affected by altruistic and egalitarian preferences, but knowledge about the distribution of these preferences in the broader population and...

We investigate the effects of constraining leverage and shrinking covariance matrix in constructing large portfolios, both theoretically and empirically. Considering a wide variety of setups that involve conditioning or not conditioning the covariance matrix estimator on the recent past...

The importance of growing economic powerhouses like India and China is increasing. Consequently, cost effective products and services and therefore, Frugal Innovations provide attractive business opportunities for globally operating companies. However, not all organizations seem to recognize...

The U.S. economy has experienced a significant drop in the fraction of the population employed in middle wage, "routine task-intensive" occupations. Applying machine learning techniques, we identify characteristics of those who used to be employed in such occupations and show they are now less...

Poverty involves both low income levels and high income uncertainty. Do both these dimensions of being poor capture attention in ways that distort decision-making and trap people in poverty? We examine these issues using real-life shocks faced by farmers in Brazil: random payday variation...

Under rotation-equivariant decision theory, sample covariance matrix eigenvalues can be optimally shrunk by recombining sample eigenvectors with a (potentially nonlinear) function of the unobservable population covariance matrix. The optimal shape of this function reflects the loss/risk that is...

Many econometric and data-science applications require a reliable estimate of the covariance matrix, such as Markowitz portfolio selection. When the number of variables is of the same magnitude as the number of observations, this constitutes a difficult estimation problem; the sample covariance...

This paper investigates how the concept of public purpose is used in Modern Monetary Theory (MMT). As a common denominator among political scientists, the idea of public purpose is that economic actions should aim at benefiting the majority of the society. However, the concept is to be...