000 00283nam a2200121Ia 4500
008 200208s9999 xx 000 0 und d
082 _aQJE
245 0 _aQuarterly Journal of Economic
245 0 _nv.112(1-2)
260 _aCambridge
260 _bHarvard University
942 _cBV
999 _c141719
_d141719