223355document807331-s2.0-S0308521X1300070X-main.pdfapplication/pdf0ea2f6073a3c75b69bb445de56fd0b16MD542430972018-02-06 08:52:53https://pure.iiasa.ac.at/id/eprint/10419/1/1-s2.0-S0308521X1300070X-main.pdf