Gross public and private investments are capital expenditures during a reference period in e.g. tangible goods, construction and alteration of buildings, existing buildings and structures, machinery and equipment. Included are new and existing investments, whether bought from third parties or produced for own use (i.e. capitalised production of tangible goods) having a useful life of more than one year including non-produced tangible goods such as land. OECD, Paris
Net investment = gross investment - depreciation