Definition: Input decay
National accounts
Input decay is the loss in the physical efficiency of an asset because, over time, it requires a greater input of labour or materials to produce a given quantity of capital services.
Source:
Organisation for Economic Co-operation and Development (OECD), "Measuring Capital - OECD Manual: Measurement of Capital Stocks, Consumption of Fixed Capital and Capital Services", Annex 1: Glossary of technical terms used in the Manual, Paris, 2001
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