Most of the models pertain to perfect competition. Forget about it! The default model should be or monopoly. - John Komlos

[W]hile income determines the position of the for food, an individual who purchases food at higher market prices might consume less of it than a self-sufficient peasant isolated from the market... even if the income of the former is greater...

[Oligarchs] are spending a lot of money on lobbies to influence government, and... the laws are made to benefit those that already are privileged.

[I]deology is unavoidable in economics because... [of] values and an organizing system of thought... preconceived notions of how the world works. This is unavoidable.