Rising gas prices, increasing environmental concern, and a seemingly obese nation have all contributed to increases in demand for our more humble modus operandi, the bicycle. Unlike most industries bicycle manufacturing has to an effect zero barriers of entry, and as a result maintains one of the most competitive and innovative market environments. Read the article, via Economist.
Bicycle and car production grew pretty much in tandem in the two decades beginning in 1950. But since 1970 bike production has nearly quadrupled while car production has roughly doubled.