000 00377nam a2200157Ia 4500
008 100324s9999 xx 000 0 und d
245 _aAmerican Economic Review(Q)
246 _f1977
260 _bAmerican Economic Association, USA.
_aUSA
_c1977
300 _cVOL:
_aIssue:
310 _aQUARTERLY
366 _b1977
366 _bDec
650 _aECONOMICS
942 _cBV
999 _c50332
_d50332