Common Contracts
1 similar null contracts
VOLUNTARY AGREEMENTS TO IMPROVE ENVIRONMENTAL QUALITY: ARE LATE JOINERS THE FREE RIDERS?November 1st, 2007
β Corresponding author. The authors acknowledge financial support from the following three sources: US Environmental Protection Agency Star Program grant #GR829687-01-0, the University of California, Santa Barbara, and the Spanish Ministry of Education and Science grant # SEC2001-1578-C02-01 and SEJ04-07877-C02-02.
