  Feeny (1982, pp. 26-28) referred to a three-factor two-good general
equilibrium trade model, when he explained the relative importance of trade and
factor endowments in Thailand 1880-1940. For example, Feeny (1982) stated that
the growth in labor stock would be responsible for a substantial increase in
rice output relative to textile output. Is Feeny's statement plausible? The
purpose of this paper is to derive the Rybczynski sign patterns, which express
the factor endowment--commodity output relationship, for Thailand during the
period 1920 to 1927 using the EWS (economy-wide substitution)-ratio vector. A
'strong Rybczynski result' necessarily holds. I derived three Rybczynski sign
patterns. However, a more detailed estimate allowed a reduction from three
candidates to two. I restrict the analysis to the period 1920-1927 because of
data availability. The results imply that Feeny's statement might not
necessarily hold. Hence, labor stock might not affect the share of exportable
sector in national income positively. Moreover, the percentage of Chinese
immigration in the total population growth was not as large as expected. This
study will be useful when simulating real wage in Thailand.
