Gabriel Tarde
"Unemployment, bankruptcy, ruin, suicide: the economy is sometimes devastating. Even worse: criminal. We have often heard this phrase in 2008 and not just the left. It is therefore perhaps not surprising that we would return slowly to a thinker who knew of a misdemeanor. Gabriel Tarde (1843-1904), judge instruction in his hometown of good Sarlat, began his career as a criminologist. He ended by focusing on the economy. Meanwhile, he founded with Emile Durkheim's sociology.
Tarde is what might be called a character. A scholar who brews ideas through massive amounts, a bousculeur concept in a turbulent period which reached the first great globalization. At the end of his life, he published The economic psychology, two thick volumes that derive their material from being professed in France College in 1900-1901. For this strange man was also an aristocrat of thought, even more famous at the time that rival Durkheim. "
From:
http://www.amateur-idees.fr/L-economie-du-3eme-type.html