Nonlinear specification and dummy variables, Econometrics

Assignment Help:
Suppose you have a model of capital investment by a U.S. rm. Imagine that yt, x1t
and x2t are annual measures of investment, lagged pro t, and lagged capital stock,
all in real dollars. The sample data contains the years 1935-1954. The model can be
written as
yt = 0 + 1x1t + 2x2t +
Dt + "t ; (1)
where Dt is the dummy variable allowing to distinguish between war and non-war
years:
Dt =
{
1 if year=1939,...,1945
0 otherwise
:
Let us de ne a second dummy variable
Ct = 1 ?? Dt
and suppose that in fact we did not run the model (1), but another model (refer to
it as model (2)), where we included both dummies Dt and Ct.
(a) Is there something we should exclude from the model (2) if we want it to be
estimable?
(b) Suppose that we have the following table of results:
Model (2) (3)
Intercept ? ?
D ? (18:099
11:26)
C ? ??(10:190
11:72)
x1 ? ( 0:028
0:0053)
x2 ? (0:163
0:012)
Can you replace the \?" signs in the table? You can use the information that
the covariance matrix of parameters estimate in model (3) is
D C x1 x2
D 126.8591 114.424 -0.0529091 -0.0290572
C 137.3539 -0.052448 -0.0578449
x1 0.00002845202 -0.0000036976
x2 0.0001380281
2

Related Discussions:- Nonlinear specification and dummy variables

The south African government is not providing, Ask question #are there a...

Ask question #are there any welfare or subsidy payment that should be reviewed or added?

Need help with Econometrics Coursework, Hello I am a PostGrad student. Need...

Hello I am a PostGrad student. Need some help in the coursework

Labor economics, Ask question #Minimum unions tie the hand of management an...

Ask question #Minimum unions tie the hand of management and inhibit efficient decision making100 words accepted#

Standard deviation of the damage, In a year, weather can impose storm damag...

In a year, weather can impose storm damage to a home. From year to year the damage is random. Let Y be the dollar value of damage in a given year. Assume that 95% of the year's Y=$

Estimate the electrons speed, An electron follows a helical path in a unifo...

An electron follows a helical path in a uniform magnetic field of magnitude 0.422T. The pitch of the path is 6.81 mm, and the magnitude force on the electron is 1.59 x 10 -15 N. W

Regression, Consider a linear model to explain pricing of houses: Price = ß...

Consider a linear model to explain pricing of houses: Price = ß0 + ß1lotsize + ß2sqrft + ß3bdrms + u (1) E(u| lotsize, sqrft, bdrms)=0 Var (u| lotsize, sqrft, bdrms)=s2 lotsize4

Material handling system, what factors affect the choice of material handli...

what factors affect the choice of material handling systems

Explain the concept of cointegration, Problem 1: (a) Using examples exp...

Problem 1: (a) Using examples explain the concept of cointegration. (b) Explain the term ‘stationarity' and its importance. (c) Differentiate between stochastic and determinist

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd