Solncy variables in x and a previous value of y; see Example 4.4. a. For estimating B, why do we obtain the same estimator if the growth in y, log(y)- log(y 1), is used instead as the dependent variable? b. Suppose that there are no covariates x in the equation. Show that, if the dis- tributions of y and y-1 are identical, then a < 1. This is the regression-to-the-mean phenomenon in a dynamic setting. (Hint: Show that x1 = Corr[log(y), log(y-1)]-)
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- In attempting to formulate a model of the passenger arrival data on cruise ships over time would a nonlinear (perhaps a multiplicative exponential) model be preferable to a linear model of cruise ship arrivals against time? What about in the case of the passenger arrivals by ferry against time?“According to the Random-Walk Hypothesis of Consumption under Uncertainty, individuals don’t need to optimise their consumption over time since the consumption is totally unpredictable” True or False?In a two-period model, an individual earns and consumes C1 in period 1 and only consumes C2 in period 2. Suppose the saving interest rate is 3.3% and the income in period 1 is $4,500. Assuming consumption smoothing, the consumption (C1 or C2) for period 1 and period 2 should be $ A . Compute A.In a two-period model, an individual earns and consumes C1 in period 1 and only consumes C2 in period 2. Suppose the saving interest rate is 3.3% and the income in period 1 is $4,500. Assuming consumption smoothing, the consumption (C1 or C2) for period 1 and period 2 should be $ A . Compute A.
- IS/LM Model refers to the general equilibrium not macroeconomic equilibrium.Suppose that the economy of country 1 is characterized by the following behavioral equations: Variable Equation Consumption C=1234 +0.5 YD Investments I=1000 + 0.1 Y Government expenditures G= 100 Net exports Nx= 300-0.2 Y Where Y denotes the real GDP and YD denotes the disposable income (YD= Y-T). Suppose that the output gap in country is measured as -15000. What should be increase in government expenditure in order to close the gap and make the economy to reach its potential level of GDP?.Based on our understanding of the model presented in Chapter 3, we know that an increase in c1 (where C = c0 + c1YD) will cause A) the ZZ line to become steeper and a given change in autonomous consumption (c0) to have a smaller effect on output. B) the ZZ line to become steeper and a given change in autonomous consumption (c0) to have a larger effect on output. C) the ZZ line to become flatter and a given change in autonomous consumption (c0) to have a smaller effect on output. D) the ZZ line to become flatter and a given change in autonomous consumption (c0) to have a larger effect on output.
- What are the limitations of Samuelson general equilibrium modelAccording to the basic discounting principle, individuals value current consumption (i.e. consumption now) more than future consumption (i.e. consumption tomorrow). A) True B) FalseGiven that the Mundell-Fleming model is one of the innovations of neoclassical economics (covering the immediate decades after the Second World War), do the policy recommendations remain timely and relevant?
- Consider the two-period Real Business Cycle (RBC) model without uncertainty presented in the lecture slides, but with one modification. Now assume that the instantaneous utility function for households takes the form: where Ct is consumption at time t and (1- lt) is leisure time at time t. Given that the time endowment is normalized to 1, it follows that lt is hours worked at time t. Finally, Ɵ > 0, b > 0 and gamma > 0 are parameters. All households in the economy are assumed to be identical. We can therefore consider a 'representative household' (henceforth 'the household'). Set t = 1 for the present period and set t = 2 for the next period. For example, C1 is consumption in the present period and C2 is consumption in the next period. Remember, this is a two-period model so there are no time periods prior to t = 1 and there are no time periods after t = 2 Assume that the household begins and ends life with no accumulated wealth and that the real interest rate is r (where…Consider the two-period Real Business Cycle (RBC) model without uncertainty presented in the lecture slides, but with one modification. Now assume that the instantaneous utility function for households takes the form: where Ct is consumption at time t and (1- lt) is leisure time at time t. Given that the time endowment is normalized to 1, it follows that lt is hours worked at time t. Finally, Ɵ > 0, b > 0 and gamma > 0 are parameters. All households in the economy are assumed to be identical. We can therefore consider a 'representative household' (henceforth 'the household'). Set t = 1 for the present period and set t = 2 for the next period. For example, C1 is consumption in the present period and C2 is consumption in the next period. Remember, this is a two-period model so there are no time periods prior to t = 1 and there are no time periods after t = 2 Assume that the household begins and ends life with no accumulated wealth and that the real interest rate is r (where…Suppose you decide to estimate a student consumption function. After you run an OLS regression on your data set with 36 observations, you obtain the following. The estimated regression, along with standard errors and t-statistics, CO = - 47.143 + 0.9714 YD (se) (2.0307) (0.157) (t) ( ) (6.187) Where, CO : the average annual consumption expenditures of the students on items other than tuition and room. YD : the average annual disposable income (including gifts) of the students Suppose that disposable income is increased by 1000 dollars on average. What would be the predicted consumption expenditures?