The goal of the current research is to examine structural determinants of national debt levels. Mainstream economic theory holds government revenues and expenditures as the major causes of budget deficits and the accumulation of national debt. This paper adopts a somehow different approach,...

The entry of new competitors operates as a balancing force against high levels of industrial concentration and the abuse of dominant position by firms with large market shares. This paper¡¯s goal is to examine theoretically the impact of Research & Development investments on new firm entry....