Advertising has always had bad press with economists, but consumers discover that a product either works and works well, or it doesn't. Consumer wants are not artificially created by business itself...
The time market determines the pure rate of interest. Price per unit of time may be wages or rent. The interest income will be earned by the capitalist who has assumed the task of advancing present money.
In order for anyone to make ethical judgments, he must know the consequences of his various actions. In questions of union actions displacement or unemployment for oneself or others will be considered unfortunate by most people.
Economics begins with the concepts of scarcity and choice. If there was no scarcity it would all be free. Resources like time and materials need to be allocated to economically feasible uses. This will depend on the consumers' demand for the final product...
Economists can say little about population and its size, despite the gloomy views of Malthus. More people are a good thing because of the division of labor. Living standards are higher when populations are higher.
The objective of the corporate firm is to maximize profits and avoid losses - the same objective of the free market. But the costs are paid out before the income comes in. Stockholders will sell stock to shake up the managers.
Thou shalt not sell a certain product or service below a certain price, e.g. wheat, cotton, corn, cheese, sugar. This will result in an artificial unsold permanent surplus, as it does in the American farm situation.