Show in a diagram an S-curve and a 45-degree line. Are all three points of intersection stable equilibrium points? Explain

Which of the following statements is true?

A) The type of institutions in a nation is considered a proximate cause of prosperity. B) Institutions determine the degree to which society accumulates factors of production and adopts new technology. C) Societal religious beliefs and existing social norms are key proximate causes of economic prosperity. D) Cultural and geographical factors that affect economic prosperity can be changed faster than the institutional factors that affect it.

One difference between the demand for a private good and that for a public good is that

A) with a private good, each consumer chooses the quantity she wants to consume but with a public good, everyone consumes the same quantity. B) the marginal benefit from consuming the last unit of a public good always exceeds the marginal benefit from consuming the last unit of a private good because there are externalities in the consumption of the public good. C) with a private good, each consumer receives different amounts of benefit from consuming the product but with a public good, every consumer realizes the same amount of benefit from consuming the product. D) with a private good, each consumer chooses the quantity she wants to consume but with a public good, each consumer chooses the price she is willing to pay for a fixed quantity.