'This is an original and very well structured and informative book. Its particular interest stems from the multidimensional and detailed analysis of a set of core technologies and their uneven diffusion process in eight countries of quite different levels of development. It challenges received...

Interpersonal relations are shaped by the judgements associated with the social categories that individuals perceive in their social contacts. I develop a model of how those judgments form based on a theory of symbolic values. The model depicts the interaction between two values, one associated...