Q.1 Consider the following model Y = C+I+G C=a-bT +b(1-k)Y ; a-bī >0 G = G D=G-T-KY The above model yield dD A. -1 dT dC В. -b dT 1-b(1-k) dY С. dT 1-b(1-k) -b dD D. dT E. Both B and C are correct.
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- Describe the recommended approach towards determining model specification.How does the R2 help in determining an appropriate model? Is theideal model the one with the highest R2? Should a regressor be included in the model if it increases the model R2?Consider the following Model (notation is standard):C=c(y-τ) I=i(r) y = C+I+G Md/P = L(y, r) Md= Ms=My = f(n) n = h(W/P) f´(n) = W/P Calculate the effects of a change in τ on C, I, r, y and P.Identify the false statement. a. The productivity increases in manufacturing sector in the USA during the industrial era can be attributed to automation, technology advances, and business process reengineering (BPR). b. In a single-queue, single-server queuing system, if the value of Mu (µ) exceeds the value of lambda (λ), then no queue will form. c. For a single-queue, single-server queuing system, the value of lambda (λ) may exceed that of Mu (µ). d. The SERVQUAL model can be used to assess customer satisfaction based on service quality gaps.
- In general, what is true about the relationship between the Sum of Squared Residuals in the restricted and unrestricted model? a. SSRr = R-squared * SSRur b. SSRr < SSRur c. SSRr > SSRur d. SSRr = SSRurHello, please help me to solve the question (c) and (d) below.Consider this regression model (1) : Yt = β0 + β1 Ut + β2 Vt + β3 Wt + β4 Xt + εt ; where t= 1, ..., 75.We use OLS to estimate the parameters, producing the following model:Ŷt = 1.115 + 0.790 Ut − 0.327 Vt + 0.763 Wt + 0.456 Xt (0.405) (0.178) (0.088) (0.274) (0.017) Given that:R2 = 0.941; Durbin Watson stat DW = 1.907; RSS = 0.0757.(To answer the question, use the 5% level of significance, state clearly H0 and H1 that are tested, the test statistics that are used, and interpret the decisions.) (a) Describe the concepts of unbiasedness and efficiency. State the conditions required of regression (1) in order that the OLS estimators of the model parameters possess these properties. (b) Perform the following tests on the parameters of regression (1): (i) test whether the parameters β1, β2, β3 and β4 are individually statistically significant; (ii) test the overall significance of the regression model;…Consider the following numerical example of the IS-LM model: C= 100 + 0.3Yd ; I = 150 + 0.2Y – 1000 i ; G = 200 ; T = 100. Derive the IS relation. I've got the answer written down as =400+0.5Y-500i can someone please provide solutions as to how it is this.
- Consider the model: yt = α0 + b0st + b1st-1 + b2st-2 + b3st-3 + ut. What is the effect of a permanent change in s on y?Subject: Economics Let ei be the ith residual in the ordinary least squares regression of y on X in the classical regression modeland let εi be the corresponding true disturbance. Prove that plim(ei - εi) = 0Consider the following log-wage regression results for women (W) and men (M) where wages are predicted by schooling (S) and age (A). wW = 2.23 + 0.077Sw + 0.017Aw and wM = 2.33 + 0.0745SM + 0.026AM. Sample means for the variables by gender are: women average a logged wage of 3.90, 12.7 years of schooling, and 40.8 years-old; men average a logged wage of 4.53, 14.2 years of schooling, and 43.9 years-old. Decompose the raw difference in average logged wages using the Oaxaca-Blinder decomposition. Specifically, decompose the raw difference into the portion due to differences in schooling, differences in age, and the portion left unexplained, possibly due to gender discrimination.
- 3) true or false and give a brief explanation on why its correct or wrong. a) To correct for seasonality in daily data, we add seven dummy variables for eachday of the week to the model. b) In time series models, OLS estimators are consistent under thecontemporaneous exogeneity assumption. c)Suppose yt is an I(1) process. Does This means that yt is a stationary process.Q: Determine whether the following statemnts are true or false: a) If the firm increases the volume of used resources by 30%, and the volume of production thus increases by 20%, then there is a positive effect of the production scale. b) Average fixed costs decrease as production increases. c) The economic profit usually exceeds the accounting profit.Q25. Given demand and supply for the Cobweb model as follows, find the intertemporal equilibrium price, and determine whether the equilibrium is stable; (i) Qdt = 18-3P Ost = -3 +4Pt-1 (ii) Qdt = 22-3P Qst = -2 + Pt-1