In macroeconomics, 'the multiplier effect' typically describes the impact of a change in the level of:
tax rates upon the incentive to work.
planned injections upon the final level of National Income.
national income upon the level of investment.
total planned consumption upon the marginal propensity to save.
222 exam-style questions on AQA A Level Economics 2.2 How the macroeconomy works: the circular flow of income, aggregate demand/aggregate supply analysis and related concepts, covering 2.2.1 The circular flow of income, 2.2.2 Aggregate demand and aggregate supply analysis, 2.2.3 The determinants of aggregate demand, 2.2.4 Aggregate demand and the level of economic activity, 2.2.5 Determinants of short-run aggregate supply, and 2.2.6 Determinants of long-run aggregate supply. Each one has a worked solution and a mark scheme showing where the marks go.