Simon Kuznets

A country's economic growth may be defined as a long-term rise in capacity to supply increasingly diverse economic goods to its population, this growing capacity based on advancing technology and the institutional and ideological adjustments that it demands.

The dynamic drives of modern economic growth, in the countries that entered the process ahead of others, meant a reaching out geographically; and the sequential spread of the process, facilitated by major changes in transport and communication, meant a continuous expansion to the less developed areas.

War and peace type products... cannot be added into a national product total until the differences in the valuation due to differences in the institutional mechanisms that determine their respective market prices are corrected for.