While implementing strategic group mapping for the U. S. domestic airline industry, two strategic groups become apparent: low-cost, point-to-point airlines (Virgin Atlantic, Alaska Airlines, JetBlue, and Southwest Airlines) versus differentiated airlines using a hub-and-spoke system (American, Delta, and United). Which of the following statements is true about these two strategic groups?A. Competitive rivalry between Virgin Atlantic and JetBlue is likely to be higher than that between American and Southwest airlines.
B. American, United, and Delta airlines will be affected differently by Porter’s five competitive forces.
C. Alaska Airlines and Delta airlines will be affected by the external environment in very similar ways.
D. Competitive rivalry between Virgin Atlantic and Delta airlines is likely to be higher than that between American, Delta, and United.

Emily sold the following investments during the year: stock date purchased date sold sales price cost basis a. 1,000 shares dot com co. 03-21-2007 02-04-2018 $20,000 $5,000 b. 500 shares big box store 05-19-2017 01-22-2018 $8,200 $7,500 c. 300 shares lotta fun, inc. 10-02-2017 09-21-2018 $3,000 $4,500 d. 700 shares local gas co. 06-17-2017 11-11-2018 $14,000 $17,000 for each stock, calculate the amount and the nature of the gain or loss.

Ajustification for job training programs is that they improve worker productivity. suppose that you are asked to evaluate whether more job training makes workers more productive. however, rather than having data on individual workers, you have access to data on manufacturing firms in ohio. in particu- lar, for each firm, you have information on hours of job training per worker (training) and number of nondefective items produced per worker hour (output). (i) carefully state the ceteris paribus thought experiment underlying this policy question. (ii) does it seem likely that a firm’s decision to train its workers will be independent of worker characteristics? what are some of those measurable and unmeasurable worker characteristics? (iii) name a factor other than worker characteristics that can affect worker productivity. (iv) if you find a positive correlation between output and training, would you have convincingly established that job training makes workers more productive? explain.

Eliza works for a consumer agency educating young people about advertisements. instead of teaching students to carefully read advertisement claims, she encourages them to develop a strong sense of self and to keep their life goals and dreams separate from commercial products. why might eliza's advice make sense?