Increase in per capital real income brings increase in per capita availability of goods and services and consequently welfare would also rise, but it may not necessarily always be so. For example, if increase in industrialisation is the outcome of increase in number of manufacturing units like factories, buildings, industries, it surely will increase the level of output and income, but at the same time it will also cause water, air and noise pollution leading to increased medical bills, laundary bills etc. Hence it will bring overall reduction in welfare of perople.