Which of the following is true regarding panel (longitudinal) data sets? Check all that apply. They do not track the same cross-sectional members over a period of time. Panel data sets enable researchers to see the effects of a policy decision. They are easier to obtain than other types of data because they use the same cross-sectional members over a small time period. Having several observations on the same cross-sectional members enables a researcher to control for unobserved characteristics.

Adistinguishing feature of ecological economics is the concept of cost-benefit analysis steady-state economies that, like natural systems, neither grow nor shrink environmental damage and also environmental benefits are external greenwashing to increase public acceptance of products the only healthy economy is one that is growing

Which of the following statements is (are) true? i. free entry to a perfectly competitive industry results in the industry's firms earning zero economic profit in the long run, except for the most efficient producers, who may earn economic rent. ii. in a perfectly competitive market, long-run equilibrium is characterized by lmc < p < latc. iii. if a competitive industry is in long-run equilibrium, a decrease in demand causes firms to earn negative profit because the market price will fall below average total cost.

Which is not true of birthday and/or annual review automatics? a. the purpose is to trigger a telephone call for a face-to-face meeting.b. quarterly automatic contacts decrease cross-sales and lead to reduced referrals.c. you are expected to stay in touch with all your active prospects and clients through two personal contacts each year?