00323nam a2200097 450000100070000000500170000700800360002410000420006024501020010226400210020401171820260807101644.0260101s1973 pe 000 0 eng d1 aInstitute for Scientific Co-Operation10aEconomics : a biannual collection of recent german contributions to the field of economic science 1aTùˆbingenc1973