Cooperations among firms as well as enterprise networks - albeit not a new phenomenon - gain attention both in science and practice since state of the art technologies such as internet and new information- and communication-media open new dimensions of its design. Network structures and concepts...

This paper analyses the environmental dimensions the past accession of Greece, Portugal and Spain to the EU in order to draw lessons for the current accession of countries of Central and Eastern Europe. A distinction is made between scale, composition and technique effects. Two major conclusions...

We present an optimal endogenous growth model with an environmental asset which delivers a direct social utility value. The efficiency of the production services provided by the environmental asset directly depend on past capital accumulation. Such an assumption corresponds to assuming that past...