As per ___________ "Economics is the study of how people and society end up choosing, with or without the use of money, to employ scarce productive resources that could have alternative uses to produce various commodities over time and distributing them for consumption, now or in the future, among various persons or groups in society. It analyses costs and benefits of improving patterns of resource allocation".
Paul A Samuelson was an American economists who proposed many theories on income and its even distribution and how these two factors leads to growth and development of the nation where one of his theories emphasized on establishment of an effective relationship between scarce resource and efficiency in the production of such resources so that all the human wants could be satisfied by the application of these scarce resources.