To date, empirical investigations of trade liberalization under the conditions of increasingreturns to scale (IRS) and imperfect competition (IC) have either assumed or imposed themarket and productive structures necessary for such a model. However, of the recent IRS/ICmodels used to simulate...

Using U.S. manufacturing data, Griliches (1969) found evidence suggesting that capitalequipment was more substitutable for unskilled than skilled labor. Griliches formulated thisfinding as the capital-skill complementarity hypothesis. The purpose of this study is todetermine whether the...

We consider the single item lot-sizing problem with capacities that are non-decreasing overtime. When the cost function is i) non-speculative or Wagner-Whitin (for instance, constantunit production costs and non-negative unit holding costs), and ii) the production set-upcosts are non-increasing...

Nach Verwirklichung der deutschen Wiedervereinigung steht die öffentliche Hand vorgravierenden finanziellen Problemen. Dem hohen Investitionsbedarf in Bereichen wieInfrastruktur, Altlastsanierung, Abfallentsorgung und Umweltschutz steht eine angespanntefinanzielle Situation der Gemeinden...

When developing urban areas, one ofthe key issues to consider is that oftraffic. The provision of well-planned,adequate transport infrastructure iskey to dealing with the levels of trafficgenerated by a major urban area. Theissue of accessibility is also important,and transport infrastructure...

This paper theoretically and empirically analyzes the interaction of emigration of highly skilled labor, an economy`s income gap to potential host economies of expatriates, and optimal public infrastructure investment. In a model with endogenous education and R&D investment decisions we show...

The share of privately managed road infrastructure throughout Western Europe is relatively high; the progress among these countries is unequally developed. While private concessionaires have been established in England, France, Spain, Finland, France, Italy and Portugal since the late 1950s,...

PRIVATISATION AND THE USE OF PUBLIC PRIVATE PARTNERSHIPS(PPP) MODELS IN THE PROVISION OF ROAD AND HIGHWAYINFRASTRUCTURE HAS CONTINUOUSLY GAINED IN IMPORTANCEWORLDWIDE AND IN PARTICULAR IN EUROPE DURING THE LASTYEARS. TRADITIONALLY CONSIDERED AS A TYPICAL PUBLIC DOMAIN,MORE AND MORE OF THE TASKS...

Angesichts von Finanzmarktkrise undRezession braucht Deutschland mehr denn jeeine kluge Wachstumsstrategie. Um dieWirtschaft nachhaltig wieder in Fahrt zubringen, müssen nicht nur die Binnennachfrage,sondern auch die Angebotskapazitätengestärkt werden. Dazu dient am besten einProgramm, wie es...

In Deutschland stellen wir jedes Jahreinen neuen Rekord auf. Jedes Jahrwurden mehr Güter und Personen durchunser Land transportiert. Diesesgeschieht zunehmend auf der Straße.Auch in den kommenden Jahren wirdsich diese Entwicklung fortsetzen. Wollenwir dies? Wie wollen wir den Ausbau...