Virginia Postrel author of the Book the Substance of Style has an interesting commentary on why we are better of today than 20 years ago, even if the macroeconomic numbers don't show much difference. The key is variety and how modern world offers today more choices than before. Just the fact of being able to choose not among 20 products but rather 100 products (what is called the consumer surplus) even if it doesn't means macroenomically speaking anything means that we are better off. Check her commentary in NPR or on her blog where she has a transcript of the radio commentary.
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