the city council wants to curb emissions by half and decides to auction off four permits, each of which entitles the bearer to emit 1 ton of smoke per day. no smoke may be emitted without a permit. suppose the government conducts the auction by starting at $1 and asking how many permits each firm wants to buy at that price. if the total is more than four, it then raises the price by $1 and asks again, and so on, until the total quantity of demanded permits falls to four.

Panera bread is a chain of cafes serving sandwiches, soups, and freshly baked breads. the company began in 1981 with stores primarily located along the east coast of the united states. since then, the firm has expanded to over 1,300 locations throughout the united states and canada. the firm has strong earnings and has been designated by business week as a "significant growth company." panera bread executives are considering the idea of expanding globally by opening cafes in asia through a franchising strategy. which of the following, if true, supports the argument that panera bread should expand into asia through franchising? a: the panera bread menu changes rapidly, and each cafe's artisan bread bakers receive regular training on new recipes. b: panera bread executives want fast access to the asian market without a significant investment of capital. c: panera bread executives want to test the asian market with a short-term commitment that allows them to make quick profits. d: the panera bread mission is to make excellent bread available to customers around the world.

Emily spent her summer vacation in buenos aires, argentina, where she got plastic surgery for a fraction of what it would cost in the united states. this is an example of:

Specialization—the division of labor—enhances productivity and efficiency by a) allowing workers to take advantage of existing differences in their abilities and skills. b) avoiding the time loss involved in shifting from one production task to another. c) allowing workers to develop skills by working on one, or a limited number, of tasks. d)all of the means identified in the other answers.