Explain how a national statistical agency, such as the Office for National Statistics (ONS) in the United Kingdom, measures changes in the general price level using a weighted index such as the Consumer Prices Index (CPI). Evaluate the extent to which alternative indicators, such as the Retail Prices Index (RPI) or Core CPI, provide a more accurate representation of inflationary pressures within an economy.
187 exam-style questions on AQA A Level Economics 2.1 The measurement of macroeconomic performance, covering 2.1.1 The objectives of government economic policy, 2.1.2 Macroeconomic indicators, 2.1.3 Uses of index numbers, and 2.1.4 Uses of national income data (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.