TY - JOUR AU - Cohen, Ruth AB - Article PDF first page preview Close This content is only available as a PDF. The Economic Journal © 1953 Royal Economic Society TI - Official Papers JF - The Economic Journal DO - 10.1093/ej/63.249.196 DA - 1953-03-01 UR - https://www.deepdyve.com/lp/oxford-university-press/official-papers-QDB0Jm3Vot SP - 196 EP - 209 VL - 63 IS - 249 DP - DeepDyve ER -