Sử dụng lý thuyết cầu - cung để giải thích cho các thị trường sau: a. Thị trường khẩu trang ở Việt Nam
b. Thị trường dịch vụ du lịch ở Việt Nam hiện tại (bắt đầu từ sau 30/4/2021 tới nay).

The law says your employer is responsible for providing you with a safe and healthy workplace. true or false?

Acoase solution to a problem of externality ensures that a socially efficient outcome is to

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i.e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?