<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Microeconomics (from Greek prefix mikro - meaning "small" + economics) is a branch of economics that studies the behavior of individuals and firms in making decisions regarding the allocation of scarce resources and the interactions among these individuals and firms . </P> <P> One goal of microeconomics is to analyze the market mechanisms that establish relative prices among goods and services and allocate limited resources among alternative uses . Microeconomics shows conditions under which free markets lead to desirable allocations . It also analyzes market failure, where markets fail to produce efficient results . </P>

Which field of economics studies how the number of firms effects