The market demand curve of a good that is rival in consumption and excludable is the horizontal sum of the individual demand curves. However, the marginal social surplus curve of a public good is the vertical sum of the individual marginal benefit curves. What aspect of a public good causes the demand curves to be summed vertically instead of horizontally

Location test: question 1 of 54)water is a solvent because itoa. is made of moleculesob. dissolves many substancesc. is a saltd. has a large buffering capacity

Abbington company has a manufacturing facility in brooklyn that manufactures robotic equipment for the auto industry. for year 1, abbingtonabbington collected the following information from its main production line: actual quantity purchased-200 units, actual quantity used-110 units, units standard quantity-100 units, actual price paid-$8 per unit, standard price-$10 per unit. atlantic isolates price variances at the time of purchase. what is the materials price variance for year 1? 1. $400 favorable. 2. $400 unfavorable. 3. $220 favorable. 4. $220 unfavorable.

Consider a firm with a contract to sell an asset for $149,000 four years from now. the asset costs $85,000 to produce today. a. given a relevant discount rate of 14 percent per year, calculate the profit the firm will make on this asset. (a loss should be indicated by a minus sign. do not round intermediate calculations and round your answer to 2 decimal places, e. g., 32.16.) b. at what rate does the firm just break even?