Answer:
B. free entry and exit by firms.
Explanation:
Answer: Extended problem solving
Explanation:
From the question it can be deduced that Robin is making use of extensive problem solving to get the best gift for her grandparents. Extended problem solving occurs when a buyer takes time to gather information about a product he/she intends purchasing for the first time. After getting the required information the best product would then be purchased.
What's is the unemplyment rate?
The unemployment rate soared from a 50-year low of 3.5 percent to 14.8 percent in April 2021 at the beginning of the CVID-19 pandemic, and then fell faster than many forecasters anticipated, to 6.3 percent in January 2021
The employment rate is_____percent
The employment-population ratio represents the proportion of the civilian non-institutional population that is employed. In 2021, the U.S. employment rate stood at 56.8 percent.
Answer:
The remark is incorrect.
Explanation:
The student says that firms in a perfectly competitive market earn zero profits in the long run which does not apply to the real world. The firms in the real-world will not operate at zero profits.
The student is getting confused between accounting profit and economic profit. Zero profit here implies zero economic profit. The firms will still be earning positive accounting profits.
Accounting profit is the difference between total revenue and explicit cost while economic profit is the difference between total revenue and both explicit and implicit cost.
We write this trigger in Oracle SQL in a following way;
CREATE TRIGGER NewPrinterTrigger
AFTER INSERT ON Printer
REFERENCING
NEW ROW AS NewRow,
NEW TABLE AS NewStuff
FOR EACH ROW
WHEN (NOT EXISTS (SELECT * FROM Product
WHERE Product.model = NewRow.model))
DELETE FROM Printer
WHERE (model, color, type, price) IN NewStuff;
