000 00400nam a2200169Ia 4500
008 100324s9999 xx 000 0 und d
022 _a0033-5533
245 _aQuarterly Journal of Economics (Q)
246 _f1991
260 _bMIT Press, Cambridge.
_aUSA
_c1991
300 _cVOL:
_aIssue:
310 _aQUARTERLY
366 _b1991
366 _bFeb,May
650 _aECONOMICS
942 _cBV
999 _c54021
_d54021