We analyse the compatibility decisions of two national firms producing horizontally differentiated variants of a good that exhibits network effects for the world market. One of the firms is able to endogenously establish an installed base in its domestic market. The firm's effort in that respect...

The European ageing process will lead to a dramatic rise in dependency ratios over the next decades. At the same time labour mobility will increase as a result of greater European economic integration. We analyse the implications of migration and ageing for European social security systems. With...

This Paper analyses the compatibility decisions of two regional monopolistic suppliers of a network-effect good who first build up installed bases in their respective home region and then compete in a third market. We show that with weak network effects, installed home bases always are higher...