000 00460pam a2200157a 44500
008 170807b2009 xxu||||| |||| 00| 0 eng d
020 _a
082 _a
100 _aCostinot, Arnaud
245 _aAn Elementary Theory of Comparative Advantage
260 _aCambridge
_bNBER
_c2009
700 _aNational Bureau Of Economic Research
856 _uhttp://elibrary.igidr.ac.in/e-library/working papers/NBER/2009/E323.pdf
906 _a79782
942 _2ddc
_cE
999 _c77871
_d77871