In this paper, we investigate the effects of cross-sectional disturbance correlation on a previously suggested panel data stationarity test. We find that the previously suggested test has a serious size distortion if the disturbances to different cross sections are correlated. We suggest a new...

This paper describes and evaluates measures of trend (or potential) output in order to improve the measuring and understanding of the current state of the Swedish economy. The target group of the paper is primarily policy makers and analysts in Sweden and international organisations who study...

When testing for stationarity in panel data several tests are available. These tests differ in degree to which they allow for serial correlation in the series under the null hypothesis. In the current paper, a serial correlation test for panel data is proposed. The suggested test can be used to...

In this paper, we investigate the effects of cross-sectional disturbance correlation in a homogenous panel-data unit root test. As reported by other authors, the unit root test has incorrect size in the presence of cross-sectional correlation. We suggest that a previously known estimator can be...

Recently, it has been suggested that the effect of government expenditure on private consumption is dependent on the level of public debt. More specifically, a higher public debt implies a less Keynesian response in private consumption. In this paper we investigate if this theory is supported by...

In this paper, we study the size distortions of the KPSS test for stationarity when serial correlation is present and samples are small and medium-sized. It is argued that two distinct sources of the size distortions can be identified. The first source is the finite-sample distribution of the...

In this paper, we study the effects of fiscal policy during different fiscal policy regimes. More specifically, we investigate how different factors, such as size, duration and composition of fiscal changes, can alter the effects of fiscal policy on private consumption. Using an unbalanced panel...

In the current paper, the finite-sample stability of various implementations of the KPSS test is studied. The implementations considered differ in how the so-called long-run variance is estimated under the null hypothesis. More specifically, the effects that the choice of kernel, the value of...

Abstract: In this paper, we study the small sample properties of the panel data stationarity test of Hadri (2000). We find that the previously suggested moments, that are to be used when standardizing the panel data stationarity test, cause size distortions when samples are small and serial...

In this paper, we elaborate on the notion of effective consumption and its role in determining the outcome of fiscal changes. More specifically, we investigate whether government consumption, by acting either as a complement or a substitute to private consumption, can help explain the...