Gregor Schwerhoff Potsdam Institute for Climate Impact Research   PO Box 601203 Potsdam,, 14412 Germany   schwerhoff@pik-potsdam.de   https://www.pik-potsdam.de/members/gregors           JEL Areas: H2 : Taxation, Subsidies, and Revenue: General H5 : National Government Expenditures and Related Policies National Government Expenditures and Related Policies: General