Bài tập 1 Trong mô hình hai quốc gia (1, 2) và hai sản phẩm (X, Y): Quốc gia 1 có năng suất 6X và 4Y (giờ/người); Quốc gia 2 có năng suất 1X và 2Y (giờ/người); Tỷ lệ trao đổi mậu dịch là 6X = 6Y.
a. So sánh lợi ích tăng thêm của 2 nước khi thương mại với nhau. (1 đ)
b. Xác định khung trao đổi mậu dịch giữa hai quốc gia. (1 đ)
Ai giúp em giải bài tập này với ạ em cảm ơn nhiều ạ!!!

Evelyn would like to open a small business that is categorized as a being in the distribution industry. to do this she could open a establishment.

Heather has been an active participant in a defined benefit plan for 19 years. during her last 6 years of employment, heather earned $42,000, $48,000, $56,000, $80,000, $89,000, and $108,000, respectively (representing her highest-income years). calculate heather’s maximum allowable benefits from her qualified plan (assume that there are fewer than 100 participants). assume that heather’s average compensation for her three highest years is $199,700. calculate her maximum allowable benefits.

You wish to retire in 13 years, at which time you want to have accumulated enough money to receive an annual annuity of $23,000 for 18 years after retirement. during the period before retirement you can earn 9 percent annually, while after retirement you can earn 11 percent on your money. what annual contributions to the retirement fund will allow you to receive the $23,000 annuity? use appendix c and appendix d for an approximate answer, but calculate your final answer using the formula and financial calculator methods.