Optimal power flow (OPF) problems are focussing on the question how a power transmission network can be operated in the most economic way. The general aim in such scenarios is to optimize generator scheduling in order to meet consumption re-quirements, transmission constraints and to minimize...

Let us consider a financially constrained leveraged financial firm having some divisions which have invested into some risky assets. Using coherent measures of risk the sum of the capital requirements of the divisions is larger than the capital requirement of the firm itself, there is some...

This paper proposes a simple method for estimating the lock-in effects of switching costs from firm-level data. We compare the behavior of already contracted consumers to the behavior of new consumers as the latter can serve as contrafactual to the former. In panel regressions on firms' incoming...

In 1998, the left-of-center government of Hungary carved out a second pillar mandatory private pension system from the original mono-pillar public system. Participation in the mixed system was optional for those who were already working, but mandatory for new entrants to the workforce. About 50...

We estimate the effect of imported machines on the wages of machine operators utilizing Hungarian linked employer-employee data. We infer exposure to imported machines from detailed trade statistics of the firm and the occupation description of the worker. We find that workers exposed to...

By 2008, the Hungarian pension system has become too generous and the implied contribution rate hindered growth. When the international economic and financial crisis deprived Hungary from normal credits, its government turned to international organizations for help. The most spectacular element...

The euro area's sovereign debt crisis continues though significant steps have been taken to resolve it. This paper proposes a comprehensive solution to the crisis based on three pillars: a plan to restore banking sector soundness in the whole euro area, a resolution of sovereign debt crisis...

Social research has long pointed to the apparent effectiveness of vocational education and training (VET) at the secondary level combining school-based vocational education with employer-provided training (so called "dual systems") in preparing non-college bound youth for the labor market. This...

Public funding drives much of the recent growth of college degree supply in Europe, but few indicators are available to assess its optimal level. In this paper, we investigate an indicator of college skills usage - the fraction of college graduates employed in "college" occupations. Gottschalk...

This paper develops an empirical method to identify the price effects of simultaneous mergers and to separate the different effects on the prices of the buyer and seller firms and on the prices of their respective competitors. Our difference-in-differences approach exploits variation in the...