000 00620pam a2200181a 44500
999 _c85820
_d85820
008 170807b2011 xxu||||| |||| 00| 0 eng d
100 _aMason, Charles
110 _aNational Bureau of Economic Research
245 _aContracting for impure public goods :
_bCarbon offsets and additionality /
_cCharles Mason and Andrew Plantinga
260 _aCambridge
_bNBER
_c2011
300 _a38p
490 _aNBER Working Paper
_v16963
650 _aNBERWP 16963
650 _aE4992.pdf
700 _aPlantinga, Andrew
856 _uhttp://elibrary.igidr.ac.in/e-library/working papers/NBER/2011/E4992.pdf
942 _2ddc
_cE