<Tr> <Td> A supply and demand diagram, illustrating the effects of an increase in demand </Td> </Tr> <Tr> <Td> <Ul> <Li> Index </Li> <Li> Outline </Li> <Li> Category </Li> </Ul> </Td> </Tr> <Ul> <Li> Index </Li> <Li> Outline </Li> <Li> Category </Li> </Ul> <Tr> <Td> <Ul> <Li> History </Li> <Li> Branches </Li> <Li> Classification </Li> </Ul> (show) <Ul> <Li> History of economics </Li> <Li> Schools of economics </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> Mainstream economics </Li> <Li> Heterodox economics </Li> <Li> Economic methodology </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> Economic theory </Li> <Li> Political economy </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> Microeconomics </Li> <Li> Macroeconomics </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> International economics </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> Applied economics </Li> </Ul> <Dl> <Dd> </Dd> </Dl> <Ul> <Li> Mathematical economics </Li> <Li> Econometrics </Li> </Ul> <Ul> <Li> JEL classification codes </Li> </Ul> </Td> </Tr>

What is the organization for economic cooperation and development