However, regardless of the magnitude of increase and the differential across the two sectors, the stark fact is that average labour productivity outside agriculture is about 5 times that in agriculture. This has very significant implications for inclusive growth. Simple arithmetic says that every worker who moves from agriculture to other sectors will increase his/her net contribution to GDP by four units.
Since earnings are typically correlated with individual productivity, this will necessarily translate into higher incomes for all the workers who make the transition. In short, the larger is the number of workers who move, the larger will be the increase in GDP  4  BIS Review 42/2010  as well as in the average earnings of the labour force.