Definition
The industrial production index covers mining and quarrying, manufacturing and public utilities, while excluding construction. The classification of economic activities is based on the International Standard of Industrial Classification of all Economic Activities Revision 3 (ISIC Rev 3). The index of retail trade is based on turnover in the retail sector deflated by changes in retail prices.
The OECD system of Composite Leading Indicators (CLI) is designed to give early signals of turning points in economic activity, as measured by industrial production. The CLI for any given country is composed of a set of economic indicators. Turning points in the CLI tend to lead those in (de-trended) industrial production by between 6 to 9 months.
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