Economic Policy, measures taken by the government intended to influence the behaviour of the economy. Some measures, such as the budget, operate over the whole economy and constitute policy in the sphere of macroeconomics; others operate on some specific and limited part of the economy, such as agriculture, and are policy elements in the realm of microeconomics. The two kinds of policy impinge on one another since measures affecting the whole economy necessarily affect the parts, and what affects any part or aspect of the economy registers in the performance of the whole.