Did the collectivization of agriculture contribute to Soviet capital f
ormation by mobilizing the agricultural surplus? While many historians
have supported this view, it has been challenged by revisionists who
claim that there was never a net flow of commodities from agriculture
to the rest of the economy and that agriculture's terms of trade actua
lly improved during the First Five Year Plan since the inflation of pr
ices on the collective farm market outweighed the effects of the bow p
rices paid for state procurements. This paper proposes new calculation
s of agriculture's trade balance that show that it was, indeed, a net
supplier of resources and that those resources financed the investment
drive of the 1930s. A computable general equilibrium model is used to
assess intersectoral linkages. These simulations show that rapid indu
strialization would have been possible without collectivization, but t
hat collectivization did accelerate industrial growth by depressing pe
asant incomes and increasing the rate of rural urban migration. The ke
y contribution of collectivization was the mobilization of labour surp
lus, not surplus grain.