A specific type of item, unit demand means were certain items that consumers want to buy in.The price level in the given time, the term "purchase requirements" in here must have the power to purchase (Purchasing.Power) by the consumer, that is, there must be sufficient funds available to buy (and Ability.Willingness) of goods and services with them. If someone has the requirements in items without a purchase.Economic goods and call it by that demands (Want) is not a demand (Demand), so.Demand will occur with Tong. Purchasing power and the ability to purchase (sharp-2554 (2011), solar)
การแปล กรุณารอสักครู่..