000			00335nam a2200181 4500
020			_a _c
082			_a330 REV
100			_a
245			_aReview of economics and statistics 1968, Vol.30
250			_a
260			_a _c
300			_a
490			_a
500			_a
590			_a _b _c
650			_aEconomics
942			_cBK
999			_c314238 _d314238