Variable returns to scale in general equilibrium theory once again

摘要: Abstract This paper relaxes some assumptions made by Jones (1968) and reconsiders the implications of variable returns to scale (VRS) for Stolper-Samuelson Rybczynski theorems. It also analyses first time relationship between factor-returns factor-supplies at constant commodity-prices. is shown that validity and/or theorem neither necessary nor sufficient production possibilities frontier be locally strictly concave origin. Several other new results are derived an attempt give intuitive explanation most important findings.