Rational economic exchange also called goods exchange economy is an economic transaction where goods or services are transferred from the provider for a return of relative value (compensation) from the receiver in a manner that advances the economic interests of both parties.

Vroom’s expectancy theory of motivation focuses on personal perceptions of the performance process. The key constructs in the expectancy theory of motivation are valence, expectancy, and instrumentality. Valence is the value or importance one places on a particular reward.

The social exchange theory has been criticized on several fronts. One major obstacle in the empirical evaluation of the concept is the subjective nature of costs and rewards, which may differ in value between different people, over time, or through comparisons with other people or rewards.

Answer: option (c). knowledge is without any cost.

The core function of an exchange is to ensure fair and orderly trading and the efficient dissemination of price information for any securities trading on that exchange. Exchanges give companies, governments, and other groups a platform from which to sell securities to the investing public.

Goods and services can be bought and sold with the use of money. For example, someone who wants shoes can buy it with money and if someone wants to sell shoes, that also can be done by receiving money. Money is used as a medium of exchange because it’s the intermediary in the exchange process.

1 Answer. Money is the medium of exchange used for exchanging goods, commodities or properties. Before money, barter system was present in the society, Modern money currency is accepted as a medium of exchange because: No individual can legally refuse payment in rupees so it is used as a medium of exchange.