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ECONOMETRICS:
Give an example of how and why heteroskedasticity might arise in economic data.
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- What are the commonalities and differences between regression and correlation?Identification. Answer the following questions below.Other Companies (Part 2) You directed your research department to do some research on the demand for Tesla sedans. They selected BMW i3 Sedans and Chevy Bolts as comparative offerings. Using regression analysis, the research department comes up the following estimate for yearly demand. Qx = -40,000 -1*Px +0.02*M +2*PB +2*PC Where: Px = $70,000, M = $150,000, PB = $65,000, PC = $40,000 a. Is the own price elasticity of demand for Tesla sedans at the point defined above elastic or inelastic? If Mr. Musk decides to raise his prices, what will happen to his revenue. b. PB and PC represent the price for i3 sedans and Bolt sedans respectively. Are these items compliments or substitutes when compared to Teslas? Give evidence to support your answer. c. Is the demand for Tesla sedans elastic or inelastic to price changes of BMW i3 and Bolt at the price points given in the problem? Interpret the result you find and explain what it means.
- 3. A researcher is commissioned by a policy maker to conduct an empirical investigation. The researcher needs to collect data and hence asks the policy maker for a grant. After the grant application is approved the researcher demands for more financial support to collect more data and increase its sample size. The researcher claims that the advantage of a bigger sample size is removing the bias from estimation. < a) Explain omitted variable in linear regressions. < b) Based on what you learnt in this module, do you agree or disagree with the researcher's claim that "bigger sample size removes the omitted variable bias". Discuss. <Economics: Industrial Economics Since only allowed 3 questions = Please Answer Parts A. - C. (and include answers to the NOTE PART: sub-questions a.; b.; c. In order to solve the Parts A. - C. questions). Thanks QUESTION: You work for the manager of a small single-product firm. Assume that you have data for your firm on costs, capital rental rate, wages and output. You realize through regression analysis that the data fits very well the following equation: ln(C) = -1.18 + 0.33 ln(r) + 0.67 ln(w) + 0.81 ln(q) A. Determine the production function from which costs were derived. Explain whether it exhibits constant, increasing or decreasing returns to scale. B. From your answer in (a), determine whether your firm should explore the possibility of expanding, knowing that the market is perfectly competitive. The market consists of a couple of large firms producing around 1,000,000 units each, multiple medium-sized firms producing 100,000 units each and a huge amount of small firms…Please ASAP. Thankyou. QUESTION 24 A quality adjusted life year is defined as? A. Health adjusted life expectancy for men B. A measure of disease burden including both quality and the quantity of life lived C. Potential years of life lost for vulnerable populations D. Health related quality of life for women QUESTION The purpose of a model is to illustrate relations between economic variables.TrueFalse
- Short Answer 2 Consider the market equilibrium model on the regression practice prob- lems where prices and quantities are determined jointly by the intersection of the supply and demand curves. We showed that, in this case, OLS of Q on P does not recover the supply nor demand elasticity. A solution to this endogeneity problem is an instrument. One popular instrument for a firm's price setting decision is the characteristics of products produced by rival firms. Why do you think such an instrument would be relevant? Do you think such an instrument would satisfy the exclusion restriction? Why?Please answer all three sub-sections of this questionWhich section of the Circular Flow Model does Walmart belong to? Households Product Markets Factor Markets Firms
- Consider the model of a firm that produces final goods using R&D and components as inputs, with cost dataas follows:Assembly: Total cost of production = PAQA = 400Earnings of High-Skilled Labor = WHHA = 100Earnings of Low-Skilled Labor = WLLA = 200Earnings of Capital = RKA = 100R&D: Total cost of production = PRQR = 400Earnings of High-Skilled Labor = WHHR = 175Earnings of Low-Skilled Labor = WLLR = 125Earnings of Capital = RKR = 100A) Which factor is assembly intensive? In which factor(s) is R&D intensive?B) Suppose that due to the opening of trade, the price of assembly falls by ∆PA/PA = −20%, the price of R&D remains unchanged, ∆PR/PR = 0%, and capital’s share earnings remains constant.C) What has happened to the relative wage of high-skilled/low-skilled labor? Does this match the predictions of the offshoring model?Q1. Engincering cconomics is the integration of economic theory with business practice for the purpose of facilitating decision – making and forward planning by the management. How it bridges the gap between economic theory and business practice. Explain with example.Consider the model of a firm that produces final goods using R&D and components as inputs, with cost dataas follows:Assembly: Total cost of production = PAQA = 400Earnings of High-Skilled Labor = WHHA = 100Earnings of Low-Skilled Labor = WLLA = 200Earnings of Capital = RKA = 100R&D: Total cost of production = PRQR = 400Earnings of High-Skilled Labor = WHHR = 175Earnings of Low-Skilled Labor = WLLR = 125Earnings of Capital = RKR = 100A) In which factor(s) is assembly intensive? In which factor(s) is R&D intensive?B) Suppose that due to the opening of trade, the price of assembly falls by ∆PAPA= −20%, the price of R&Dremains unchanged, ∆PRPR= 0%, and capital’s share earnings remains constant.C) What has happened to the relative wage of high-skilled/low-skilled labor? Does this match the predictions of the offshoring model?
