5. Giá vàng giao ngay hiện tại là 60 tr/ 1 cây. Giá kỳ hạn 1 năm là 62 tr/ 1 cây.

Một nhà kinh doanh chênh lệch giá có thể vay tiền lãi suất 10%/ năm.
Nhà kinh doanh nên làm gì?

Giả sử chi phí lưu giữ vàng bằng 0 và trong thời gian nắm giữ vàng không có lợi nhuận gì phát sinh từ lượng vàng đó. Giả sử lãi suất kép hàng năm?

Jason day company had bonds outstanding with a maturity value of $300,000. on april 30, 2017, when these bonds has an unamortized discount of $10,000, they were called in at 104. to pay for these bonds, day had issued other bonds a month earlier bearing a lower interest rate. the newly issued bonds had a life of 10 years. the new bonds were issued at 103 (face value $300,000).

You want to make an investment in a continuously compounding account over a period of two years. what interest rate is required for your investment to double in that time period? round the logarithm value and the answer to the nearest tenth.

Onsider the following subscription behavior information from genie, a web site that provides tools for constructing a family tree (ancestor search). subscriptions cost $9.99 per month, but you are charged for the entire year at the time of purchase. there is a one-year minimum term when you sign up for the service. once purchased, subscriptions are set to renew automatically unless the subscriber cancels them. when a membership renews, it renews for a one-year term and again you are charged for the entire year. there are no variable costs associated with providing this service to an individual customer, but genie does engage in customer relationship activities that they believe will increase customer retention. these customer relationship activities cost genie about $10 per year per customer. based on a sample of 1000 customers that joined genie five years ago, near the time when the company was founded, they were able to determine how many of those customers remained subscribers in the second year, third year etc. based on this information, genie calculated the average annual retention rate to be 20%. genie uses an annual discount rate of 8%. a. last year, genie spent $10,000 placing advertisements on google. genie management believes that these advertisements were responsible for about 300 new subscribers. would you recommend to genie management that they purchase more google ads? b. suppose a newly-introduced loyalty program increases the number of customers that remained to 30%. does this new data change your answer to 9.a? c. do you have any hesitations or concerns about making recommendations to management based on your above estimate of customer lifetime value?