Drawing on the proposer-responder game examined by Andreoni, Harbaugh, and Vesterlund (2003), I experimentally test four variations of a principal-agent relationship with fixed pay and real effort. Depending on the treatment, the principal can voluntarily, but at her own expense, (1) only reward...

The German law on employees' inventions requires employees to report to their employer any invention made in relation with the work contract. An employer claiming the right to the invention is obliged to pay a compensation to the employee. Up to now, this compensation is a matter of...