abstract:Mesoeconomics or Mezzoeconomics is a neologism used to describe the study of economic arrangements which are not based either on the microeconomics of buying and selling and supply and demand, nor on the macroeconomic reasoning of aggregate totals of demand, but on the importance of under what structures these forces play out, and how to measure these effects. It dates from the 1980s as several economists began questioning whether there would ever be a bridge between the two main economic paradigms in mainstream economics, without wanting to discard both paradigms in favor of some other basic methodology and paradigm.