The relationships among firm size, profitability and diversification are examined for a sample from the top 400 industrial firms in Canada in 1975. Account is taken of industry‐specific factors and of foreign ownership. The main findings are that increasing firm size is not associated with...

Adam Smith's dictum that the division of labour is limited by the extent of the market is invoked as an explanation of observed intra‐industry trade. The strongest results from empirical studies of intra‐industry trade (relating it to level of development, time, falling trade barriers, and a...