- Table 1-6 on the textbook website contains data on 1,247 cars for 2008.14 To find out if there is there a relationship between a car’s MPG (miles per gallon) and the number of cylinders it has:a.
- Table 1-4 on the book's website gives monthly data on the closing prices of the Dow Jones Industrial Average and the Standard & Poor's 500 stock market indexes. The data are from Yahoo Finance's
- Table 1-2 on the website updates the data given in Table 1-1 for the years 2001–2016. For the years 2001–2007, the CLFR and CUNR figures are the same as those shown in Table 1-1. However, the
- Table 1-5 on the book's website gives data on the exchange rate between the U.K. pound and the U.S. dollar (number of U.K. pounds per U.S. dollar), as well as the consumer price indexes in the two
- Table 1-7 on the book’s website gives data on Corruption Perception Index and GDP per worker.a. Plot Corruption Perception Index against GDP per worker.b. A priori, what kind of relationship do you
- Table 1-8 on the book's website gives quarterly data on real personal consumption expenditure (RPCE) and real personal disposable (after-tax) income (RPDI) for the years 2014–2019.a. Plot RPCE and
- Table 1.9 on the book's website gives data on the following variables for 99 countries obtained from the Human Development Report for 1994. LifeExp = 1992 life expectancy at birth TV =
- Table 1-7 on the book’s website gives data for 83 countries on per worker GDP for 1997 and the Corruption Perception Index for 1998.a. Plot the index against per-worker GDP.b. Based on the plot,
- Find out if the GDP and money supply time series given in Table 11-7 (on the book's website) are individually stationary. If not, are their first differences stationary? Are the two time series
- Table 11-10 on the book's website gives annual data on the German-U.S. exchange rate for the Period 1, 1950 to 2010.a. Plot the data in this table. What does a visual inspection of the data tell
- From the website of the Frees book cited earlier, obtain panel data of your liking and estimate the model using the various panel estimation techniques discussed in this chapter.
- Explain why most economic time-series data show positive autocorrelation.
- Explain intuitively why the method of weighted least squares (WLS) is superior to OLS if heteroscedasticity is present.
- What is the difference between perfect and imperfect multicollinearity?
- What is meant by collinearity? And by multicollinearity?
- Would you reestimate Equation (5.22) dropping the intercept? Why or why not? Y = -0.2594+20.5880 T t=(-0.2572) (4.3996) X, r² = 0.6594 2.2 (5.22)
- What are the consequences of including irrelevant variables in a model?
- What are different types of specification errors? Can one or more of these errors occur simultaneously?
- Since we do not observe the PRF, why bother studying it? Comment on this statement.
- Based on the data for 1947–2002, Kellsted and Whitten obtained the following regression: M₁ = 74.00 -2.71GDPt where M = percentage of households in which a married couple is present and GDP
- President Joe Biden plans to propose to the U.S. Congress an infrastructure investment plan (highways, bridges, tunnels, etc.) at a cost of about $2 trillion. To pay for this, he also plans to
- How do you perceive the role of econometrics in decision making in business and government?