Ian Shields Communications, Inc., a cellular communications provider based in Michigan, charges $93 per month for an all you can talk service plan. The company plans to increase marketing expenditure next year, but wants to determine the current CLV before making this decision. Variable costs before marketing are $27 per account per month and monthly retention expenditures are $17 per account. Ian Shields Communication's annual attrition rate is 15%, with an annual discount rate of 11%. What is the monthly contribution margin ($) per customer account not including retention costs

Amathematical approximation called the rule of 70 tells us that the number of years that it will take something that is growing to double in size is approximately equal to the number 70 divided by its percentage rate of growth. thus, if mexico's real gdp per person is growing at 7 percent per year, it will take about 10 years(=70/7) to double. apply the rule of 70 to solve the following problem. real gdp per person in mexico in 2005 was about $11,000 per person, while it was about $44,000 per person in the u. s. if real gdp per person in mexico grows at the rate of 5 percent per year: how long will it take mexico's real gdp per person to reach the level that the united states was at in 2005? (hint: how many times would mexico's 2005 real gdp per person have to double to reach the u. s.'s 2005 real gdp per person?

Any point on a country's production possibilities frontier represents a combination of two goods that an economy:

If the economy were in the contracting phase of the business cycle, how might that affect your ability to find work?