Where Qi is the total tonnage of grain shipped in week i, Pi is the price of shipping a ton of grain by rail, Icei is a binary variable that is equal to 1 if the Great Lakes are not navigable because of ice. Ice is included because grain could also be transported by ship when the Great Lakes were navigable. Estimate the demand equation by OLS. What is the estimated value of the demand elasticity and its standard error

Which statement about the cost of the options is true? she would save $1,000 by choosing option b. she would save $5,650 by choosing option a. she would save $11,200 by choosing option b. she would save $11,300 by choosing option a.

Witch is an example of a non durable good?

Ireally need with these questions.6. what level of job security do athletes and sports competitors have? why do you think this is? 22. do you think a musician has more job security than an athlete? explain.37. what is the difference between a public relations specialist and a marketing professional? 47. do you think gender inequalities still exist in the sports industry? explain.50. what are the advantages and disadvantages of labor unions? do you think labor unions are fair to employers? how might they be taken advantage of?