This SIMAT Working Paper deals with an intensively discussed topic in the German natural gas economy: The price-link in natural gas contracts. Because of opposite price developments of the energy commodities such as oil, coal or natural gas, the traditionally used oil price-link is facing a...

We study a continuous-time problem of optimal public good contribution under uncertainty for an economy with a finite number of agents. Each agent can allocate his wealth between private consumption and repeated but irreversible contributions to increase the stock of some public good. We study...