Banga and Goldar (2004) found that services input contributed for about 25 percent of output growth of registered manufacturing during 1990s (as against 1 percent during 1980s), and that increasing use of services in manufacturing has significant favourable impact in total factor productivity (TFP) growth of organised manufacturing sector.
Using input-output matrices for four time points (1968-69, 1979-80, 1989-90 and 1993-94), Sastry et al. (2003) observed that over the years agricultural production became more industry- and services-intensive, whereas industrial production became less agriculture-intensive and more services-intensive. These observations, in turn, imply that excluding the services sector from the analysis understates the „agriculture-industry‟ linkages.