We analyze a situation where a principal wants to induce two firms to produce an output, e.g. electricity from renewable energy sources. Firms can undertake non-contractible investments to reduce production cost of the output. Part of these investments spills over and also reduces production...

We analyze a situation where a principal wants to induce firms to produce an output, e.g. electricity from renewable energy sources. Firms can undertake non-contractible investments to reduce production costs of the output. Parts of these investments spills over and also reduce production costs...