Marine protected areas (MPAs) provide both conservation and economic benefits. Recent international conservation actors have called for a dramatic increase in the area of MPAs from almost 8% to 30% of marine area by 2030 in a policy called 30X30. Both the economics and conservation science...

It is difficult for public agencies to make optimal reserve-site selections without knowing how new public reserves might influence the configuration of private conservation. Private land trusts protect much land in the USA, but little is known about how private groups respond to conservation...

The number of land trusts in a state varies widely across the United States. Could such variation make economic sense? This paper models the optimal number of private conservation agents in a region and highlights two competing forces: spatial externalities in conservation that increase the...

China's national forest statistics describe increases in total forest cover during the 1980s but mask the diversity of responses to economic reform and some characteristics of the forests and, forest uses. The provincial-level statistics reported here confirm the regional studies and anecdotal...