| 1. |
- Amilon, Henrik
(författare)
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GARCH estimation and discrete stock prices: an application to low-priced Australian stocks
- 2003
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Ingår i: Economics Letters. - 0165-1765. ; 81:2, s. 215-222
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Tidskriftsartikel (refereegranskat)abstract
- The GARCH model is misspecified if applied to returns calculated from discrete prices. We propose a modification of the above model for handling such cases. We find large differences between the standard and the extended model estimates, although the results sometimes are obscured by large standard errors.
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| 2. |
- Adolfson, Malin
(författare)
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Export price responses to exogenous exchange rate movements
- 2001
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Ingår i: Economics Letters. - : Elsevier. - 0165-1765. ; 71:1
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The export price responses to three different exogenous exchange rate movements are investigated, using data on Swedish exports of automobiles and kraft paper to three destination countries. A price determining error correction model indicates results consistent with price discrimination.
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| 3. |
- Andersson, Michael K., et al.
(författare)
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Power and bias of likelihood based inference in the cointegration model under fractional cointegration
- 1999
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Ingår i: Economics Letters. - : Elsevier. - 0165-1765. ; 65:2, s. 143-147
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This paper investigates how fractional cointegration affects the common maximum likelihood cointegration procedure. It is shown that the likelihood ratio test of no cointegration has considerable power against fractional alternatives. In contrast to the case of a cointegrated system, the usual maximum likelihood estimator gives severely biased estimates of the long-run relation under fractional cointegration. This suggests that the standard likelihood approach should be used with caution and that a test to separate fractionally cointegrated series from series that are cointegrated of an integer order should be executed prior to estimation.
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| 4. |
- Braunerhjelm, Pontus, 1953-
(författare)
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The Relation Between Firm-Specific Intangibles and Exports
- 1996
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Ingår i: Economics Letters. - 0165-1765 .- 1873-7374. ; 53:2, s. 213-219
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Tidskriftsartikel (refereegranskat)abstract
- The main issue addressed in this paper concerns the relationship between firms' endowments in intangible proprietary assets and their export performance. The impact of investments in foreign production capacity on exports is taken into account in the empirical analysis.
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| 5. |
- Brännäs, Kurt, et al.
(författare)
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Estimating the perceived tax scale within a labor supply model
- 1996
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Ingår i: Economics Letters. - : Elsevier BV. - 0165-1765 .- 1873-7374. ; 52:1, s. 75-79
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Tidskriftsartikel (refereegranskat)abstract
- The Swedish marginal tax scale is too complex to be known in detail by individuals. This paper indicates that perceived tax scales can be estimated jointly with a labor supply equation. The differences between the true and estimated tax scales are found to be small.
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| 6. |
- Brännäs, Kurt
(författare)
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Omitted variables in a weibull regression model
- 1984
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Ingår i: Economics Letters. - : Elsevier BV. - 0165-1765 .- 1873-7374. ; 16:3-4, s. 279-283
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Tidskriftsartikel (refereegranskat)abstract
- Asymptotic biases of maximum likelihood and least squares estimators in a Weibull model, subject to omitted variables, are given. The results are contrasted to those of a small sample Monte Carlo experiment.
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| 7. |
- Brännäs, Kurt
(författare)
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Small sample properties in a heterogenous Weibull model
- 1986
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Ingår i: Economics Letters. - : Elsevier BV. - 0165-1765 .- 1873-7374. ; 21:1, s. 17-20
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Tidskriftsartikel (refereegranskat)abstract
- Neglected heterogeneity implies bias for estimators in, e.g., the Weibull duration model. In a Monte Carlo experiment the proper maximum likelihood estimator is better than a new least squares estimator. The likelihood estimator neglecting heterogeneity is inferior.
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| 8. |
- Johannesson, Magnus, et al.
(författare)
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Hypothetical versus real payments in Vickrey auctions
- 1997
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Ingår i: Economics Letters. - : Elsevier B.V. - 1873-7374 .- 0165-1765. ; 56:2, s. 177-180
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Tidskriftsartikel (refereegranskat)abstract
- We compare hypothetical and real payments in a Vickrey auction. The use of hypothetical payments overestimates the real willingness to pay. The results cast doubt on the validity of hypothetical willingness to pay questions for the typical respondent.
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| 9. |
- Karlsson, Sune, 1960-, et al.
(författare)
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On the power and interpretation of panel unit root tests
- 2000
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Ingår i: Economics Letters. - : Elsevier. - 0165-1765 .- 1873-7374. ; 66:3, s. 249-255
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Tidskriftsartikel (refereegranskat)abstract
- We demonstrate that panel unit root tests can have high power when a small fraction of the series is stationary and may lack power when a large fraction is stationary. The acceptance or rejection of the null is thus not sufficient evidence to conclude that all series have a unit root or that all are stationary.
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| 10. |
- Lanfranchi, Joseph, et al.
(författare)
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Compensating wage differentials and shift work preferences : Evidence from France
- 2002
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Ingår i: Economics Letters. - 0165-1765 .- 1873-7374. ; 74:3, s. 393-398
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Tidskriftsartikel (refereegranskat)abstract
- We study if there are compensating wage differentials paid for shift work using French matched employer–employee data for male full-time blue collar workers. There is a significant shift premium of 16% that has a significant impact on shift work choice.
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