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denis23 [38]
3 years ago
8

Labor economists often study the returns on investment in education (see, e.g., Card 1999). Suppose we have data on salaries of

a set of people, some of whom went to college and some who did not. A simple model linking education to salary is:
Salaryᵢ = β₀ + β₁ College graduateᵢ + ϵᵢ
, where the value of Salaryᵢ, is the salary of person i and the value of College graduateᵢ; is 1 if a person i graduated from college and 0 if a person i did not.
(a) What does β₀ mean? What does β₁ mean?
(b) What is in the error term?
(c) What are the conditions for the independent variable X to be endogenous?
(d) Is the independent variable likely to be endogenous? Why or why not?
(e) Explain how endogeneity could lead to incorrect inferences.
Business
1 answer:
stira [4]3 years ago
5 0

Answer:

a. The intercept terms beta0 depicts the minimum amount of salary that a person will be earning if the person is not a college graduate. beta1 depicts that if a person is a college graduate, then the salary of the person increases by \beta 1 units.

b. The error term include all other variables impacting salary of the person other than the the person being a college graduate.

c. The independent variable X will be endogenous when salary plays an important role in determination of whether a person is college graduate.

d. yes, independent variable can be endogenous in some cases when dependent variable Y is impacting the independent variable X.

e. Endogeneity can lead to relaxation of one of the important assumption of Ordinary Least Squares (OLS) which considers independent variable to be endogenous. This will lead to the problem of multi collinearity. The Simultaneous Equation model can be used in this case rather than OLS model.

Explanation:

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Which of the following accurately explain the importance of the ceteris paribus assumption for an economic model? Check all that
ladessa [460]

Answer:

The correct answer is:  It allows economists to isolate or focus attention on selected variables.

Explanation:

The word ceteris paribus means other things being constant. The working of an economy is very complex, each variable is affected by a number of variables. It is difficult to understand all the complex relationships at the same time.

The assumption of ceteris paribus or other factors being constant helps the economists in isolating the variables that they want to study while keeping others constant.

It simplifies the study of economic models and helps to easily grasp the working of the economy.

5 0
3 years ago
Six Sigma Projects are easy to identify. They seek out sources of waste such as overtime and warranty claims; investigate produc
sladkih [1.3K]

Answer: True

Explanation:

Six Sigma projects have eight essential phases which are to; 1. recognize

2. define

3. measure

4. analyze

5. improve

6. control

7. standardize and

8. integrate.

It is a method whose primary objective is improving profit making by improving quality and efficiency standards. Project teams utilising this method want to reduce variability in processes by actively seeking out potential sources of waste especially in overtime and warranty claims.

They also investigate production backlogs or areas in need of more capacity and focus on customer and environmental issues.

7 0
3 years ago
You are the supervising engineer in the construction of an offshore oil drilling platform that is fabricated by welding stainles
earnstyle [38]

Answer: this is to render a heat solution of about 1070 degree Celsius with water to quench, so as to retain the carbides solution in the defective steel for re use.

Explanation:

With the climate condition in the off shore oil drilling platform, it won't rake long for the fabricated steels to collapse and cause the loses of multiple lives and properties.

As an expert I will suggest we deconstruct the steels and use Austenitic stainless steel, because of its corrosion resistance.

We might as well sensitised the steels before use. Because the sensitisation occurs in the region that has seen temperature close to 600 and 900°C.

My possible solution to overcome this defect stated by the quality control and as a result spend less, is that we undergo a HEAT SOLUTION TREATMENT at a 1070°C followed by a water quench to help retain the carbides solution on a rapid cooling in those defective still, and also make it resistance to the climate condition of the area and also commence the project.

3 0
3 years ago
Has the company you’re auditing recently increased or decreased their operations due to mergers or sales of parts of the busines
stealth61 [152]

Answer:The answer is increased their operations, the business is a conglomerate, The operating supplies is subject to wild pricing swing, operation of the business in dangerous part of the world reduces the profit.

Explanation:

Merger is the joining of two or more independent company's into one bigger and United company. The procedures for merger involved the adoption of the resolution of a merger by the board of directors of the two companies, the resolution will set out the new name to be adopted, the terms and conditions of the merger. It also includes the method of converting securities, the plan must be adopted by the two- third majority of the shareholders of both firms. Then all necessary documents will then be submitted to the registrar of company, the registrar of company will then issue a certificate of merger it then that the merger comes into existence. The merger of two companies ensures the raising of enough capital for business. It also ensures the reduction of competition between rivals,it also gives the business the opportunity to compete favourably with other well established firms. It may also ensures the diversification of their range of products and ensures the efficiency of the business.

A merger can be a conglomerate merger, a conglomerate is a merger between two or more different companies under a common ownership and runs as a single organization. The business may be doing a business which are not related before the merger and they may be operating in a different industries or in a different geographical locations.

A price swing is a rise and fall in the sum or amount of money at which a product is valued in the market. The price of a product such as operating supplies may be moving forward or backward in the market which may affect the supply of such a product. The price of a product in the market is determined by the market mechanism which is the force interplay of both demand and supply.

Oversea operation is the expansion of the business to other parts of the world with a view to gain a market share of the market and improve on the profitability of the business. When a company is operating in the dangerous parts of the world such as a country where there is terrorist activities or where there is civil war, it affects their operations and has a great effect on the company's investment in such countries such a company may be forced to close their operations in such a war ravage countries which will affect the profit of the company. It often leads to the reduction in the company's profits when the final account of the company's is prepared.

5 0
3 years ago
Jill is a sales representative for a large pharmaceutical corporation. According to the current compensation system, if Jill mee
lys-0071 [83]

Answer: Jill is extrinsically  motivated

Explanation:

Extrinsic motivation refers to the behavior of individuals to to participate in an activity based on meeting a target in order to gain an reward.The rewards to gain is the  motivation for individuals to perform task they would lackadaisically  have done or would not have attempted if no external reward was attached.

Here, Jill is  working so hard to meet her sales goal to be able to buy a new car because she knows that she would receive a bonus, this typically shows an Extrinsic Motivation on her part.

4 0
4 years ago
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