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References—703

 

 

 

 

 

 

 

 

 

 

S =

 

 

jˆ 2

jˆ

 

 

 

=

1

N

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ˆ

u

ˆ 2

 

 

NT

  witwit¢

 

 

 

 

 

 

 

 

 

 

 

 

ˆ

 

 

 

 

 

 

ue

 

 

--------

 

 

 

ˆ

ˆ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

jue je

 

 

 

 

i = 1 t = 1

 

 

 

 

and the long run covariance is estimated using the usual kernel estimator

 

ˆ

 

 

 

 

ˆ 2

ˆ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

=

 

 

j0u

j0ue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q

 

 

ˆ

 

ˆ 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

j0ue

j0e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 N

 

 

 

T

 

 

 

 

 

 

1

 

 

 

 

T

 

 

 

 

 

=

1

 

w

 

w ¢ +

 

k(t § b)

 

ˆ ˆ

ˆ

ˆ

 

---

Â

---

Â

 

---

Â

Â

(witwit t

¢ + wit t wit¢)

 

 

ˆ

it

ˆ

it

 

 

 

 

 

 

 

 

 

 

 

N

 

T

 

 

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

i = 1

 

 

t = 1

 

 

 

 

 

 

 

t = 1

 

t = t + 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

where k is one of the supported kernel functions and b is the bandwidth.

Combined Individual Tests (Fisher/Johansen)

(38.21)

(38.22)

Fisher (1932) derives a combined test that uses the results of the individual independent tests. Maddala and Wu (1999) use Fisher’s result to propose an alternative approach to testing for cointegration in panel data by combining tests from individual cross-sections to obtain at test statistic for the full panel.

If pi is the p-value from an individual cointegration test for cross-section i , then under the null hypothesis for the panel,

N

 

–2 Â log(pi) Æ x22N

(38.23)

i = 1

By default, EViews reports the x2 value based on MacKinnon-Haug-Michelis (1999) p-val- ues for Johansen’s cointegration trace test and maximum eigenvalue test.

References

Boswijk, H. Peter (1995). “Identifiability of Cointegrated Systems,” Technical Report, Tinbergen Institute.

Engle, Robert F. and C. W. J. Granger (1987). “Co-integration and Error Correction: Representation, Estimation, and Testing,” Econometrica, 55, 251–276.

Fisher, R. A. (1932). Statistical Methods for Research Workers, 4th Edition, Edinburgh: Oliver & Boyd.

Hamilton, James D. (1994). Time Series Analysis, Princeton: Princeton University Press.

Johansen, Søren (1991). “Estimation and Hypothesis Testing of Cointegration Vectors in Gaussian Vector Autoregressive Models,” Econometrica, 59, 1551–1580.

Johansen, Søren (1995). Likelihood-based Inference in Cointegrated Vector Autoregressive Models, Oxford: Oxford University Press.

Johansen, Søren and Katarina Juselius (1990). “Maximum Likelihood Estimation and Inferences on Coin- tegration—with applications to the demand for money,” Oxford Bulletin of Economics and Statistics, 52, 169–210.

704—Chapter 38. Cointegration Testing

Kao, Chinwa D. (1999). “Spurious Regression and Residual-Based Tests for Cointegration in Panel Data,”

Journal of Econometrics, 90, 1–44.

Maddala, G. S. and S. Wu (1999). “A Comparative Study of Unit Root Tests with Panel Data and A New Simple Test,” Oxford Bulletin of Economics and Statistics, 61, 631–52.

MacKinnon, James G. (1996). “Numerical Distribution Functions for Unit Root and Cointegration Tests,”

Journal of Applied Econometrics, 11, 601-618.

MacKinnon, James G., Alfred A. Haug, and Leo Michelis (1999), “Numerical Distribution Functions of Likelihood Ratio Tests for Cointegration,” Journal of Applied Econometrics, 14, 563-577.

Osterwald-Lenum, Michael (1992). “A Note with Quantiles of the Asymptotic Distribution of the Maximum Likelihood Cointegration Rank Test Statistics,” Oxford Bulletin of Economics and Statistics, 54, 461–472.

Pedroni, P. (1999). “Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors,” Oxford Bulletin of Economics and Statistics, 61, 653–70.

Pedroni, P. (2004). “Panel Cointegration; Asymptotic and Finite Sample Properties of Pooled Time Series Tests with an Application to the PPP Hypothesis,” Econometric Theory, 20, 597–625.

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