Which of the following best illustrates the application of the model-building process to economics?
a. on a sunday morning talk show, two economists with differing political agendas argue about the best way to solve the social security problem on a sunday morning talk show.
b. a labor economist notices that unemployment tends to be higher among teenagers than more experienced workers, develops a model, and gathers data to test the hypotheses in the model.
c. a ph. d. student in economics develops a plausible mathematical model of an industry for his dissertation, but there is no data to test the model.
d. economists come to believe that some economic models are true simply because prominent leading economists say they are true.

Zapper has beginning equity of $257,000, net income of $51,000, dividends of $40,000 and investments by stockholders of $6,000. its ending equity is

Read the overview below and complete the activities that follow. apartment complexes often look for ways to recruit new tenants and retain current tenants. although apartment complexes offer the tangible benefit of shelter to their tenants, many apartment complexes also offer additional services to tenants to encourage tenants to stay or to support the rent prices. the following scenario identifies the several service gaps of a company that runs an apartment complex as well as solutions for reducing these service gaps. concept review: customers have certain expectations about how a service should be delivered. a service gap occurs when the delivery of a service fails to meet customer expectations. there are four types of service gaps: knowledge gap, standards gap, delivery gap, and the communications gap. it is important for marketers to identify these gaps and develop strategies for minimizing them. match the example or solution to the appropriate service gap category.1. wait for repairs 5. train employees well2. understand expectations 6. incentives for tenants3. do not overpromise 7. family movie night4. empower employees 8. delayed lawn careservice gap example solutionknowledge gap standards gap delivery gap communication gap

Which completes the equation? o + a + consideration (+ = k legal capacity legal capability legal injunction legal corporation