Deutschland wird von Teilen der Wissenschaft, der Politik und in der Öffentlichkeit Investitionsschwäche attestiert. Doch tatsächlich trifft dies nicht auf alle Bereiche der Investitionsentwicklung in Deutschland zu. Die Autoren arbeiten unterschiedliche Trends auf verschiedenen staatlichen...

This paper tests the Purchasing Power Parity Theory of Exchange Rates dealing with Argentinean data for the period 1900-2006. This is equivalent to testing if the Real Exchange Rate is a stationary variable or if its components (the nominal exchange rate and the relative prices) are...

In 2008, Mexico City was the first entity to approve unilateral divorce in Mexico. Since then, 17 states out of 31 have also moved to eliminate fault-based divorce. In this paper, I investigate the effect of the changes in unilateral legislation on divorce rates in Mexico, given the remarkable...

Media plays a significant part of our lives and it has the power to provide us with ideas and/or some perspective on the selected topics. Terrorist attacks cause fear which is spread by media. The fact is that during the biggest 'terrorist fever' in the Czech Republic between 2015-2016, the...

The ANPEC exam has been an important instrument for the Brazilian academic economics since the 1970s. Nowadays, practically all graduate program in economics uses it as selection mechanism. This research has tabulated its microdata to produce a picture of what these numbers can reveal about...

In this paper, we consider the strategic asset allocation of an insurance company. This task can be seen as a special case of portfolio optimization. In the 1950s, Markowitz proposed to formulate portfolio optimization as a bicriteria optimization problem considering risk and return as...

For a continuous multi-objective optimization problem, it is usually not a practical approach to compute all its nondominated points because there are infinitely many of them. For this reason, a typical approach is to compute an approximation of the nondominated set. A common technique for this...

In a single-objective setting, nonconvex quadratic problems can equivalently be reformulated as convex problems over the cone of completely positive matrices. In small dimensions this cone equals the cone of matrices which are entrywise nonnegative and positive semidefinite, so the convex...

The problem of minimizing the difference of two convex functions is called polyhedral d.c. optimization problem if at least one of the two component functions is polyhedral. We characterize the existence of global optimal solutions of polyhedral d.c. optimization problems. This result is used to...