Ayoung couple living in rural west-central missouri heard about the closing of a local grocery store. although a small operation, it served a small community that would now have to travel another 20 miles to the nearest grocery store. with from a local realtor and banker, the couple purchased the store, remodeled it, and re-opened it. as new store owners, they had to carefully watch cash flow. as their customer base began to grow, they began offering hot food, and hired others to with the operation.
the economic benefit created in this story is called:

a. an economic intervention.
b. an economic crisis control.
c. the invisible hand.
d. the deliberate process.

The monthly demand equation for an electric utility company is estimated to be p equals 60 minus left parenthesis 10 superscript negative 5 baseline right parenthesis x, where p is measured in dollars and x is measured in thousands of killowatt-hours. the utility has fixed costs of $3 comma 000 comma 000 per month and variable costs of $32 per 1000 kilowatt-hours of electricity generated, so the cost function is upper c left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 32 x. (a) find the value of x and the corresponding price for 1000 kilowatt-hours that maximize the utility's profit. (b) suppose that the rising fuel costs increase the utility's variable costs from $32 to $38, so its new cost function is upper c 1 left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 38 x. should the utility pass all this increase of $6 per thousand kilowatt-hours on to the consumers?