ESPRIT for multidimensional general grids

We present a new method for complex frequency estimation in several variables, extending the classical (1d) ESPRIT-algorithm. We also consider how to work with data sampled on non-standard domains (i.e going beyond multi-rectangles)

The Swedish 1990 Agricultural Reform - Adjustments of the Use of Land

This paper provides an empirical analysis of adjustments of land use as a result of the conversion programme in the Swedish agricultural reform of 1990. The determinants of farmers' choice to voluntarily convert arable land to other uses and the share of land converted are analysed with the Heckman selection model. The results suggest that the decision to convert is significantly affected by a farmer's age, the size and location of the farm, the type of farming, and the macroeconomic situation in the region. Farm operators on farms highly specialised in grazing livestock and farmers on large farms were found to be more prone to convert.sample selection, agricultural reform, Sweden, set aside, MTR, Agricultural and Food Policy, Q15, Q18,

The Diagonalisation of the Lund Fragmentation Model I

We will in this note show that it is possible to diagonalise the Lund Fragmentation Model. We show that the basic original result, the Lund Area law, can be factorised into a product of transition operators, each describing the production of a single particle and the two adjacent breakup points (vertex positions) of the string field. The transition operator has a discrete spectrum of (orthonormal) eigenfunctions, describing the vertex positions (which in a dual way corresponds to the momentum transfers between the produced particles) and discrete eigenvalues, which only depend upon the particle produced. The eigenfunctions turn out to be the well-known two- dimensional harmonic oscillator functions and the eigenvalues are the analytic continuations of these functions to time-like values (corresponding to the particle mass). In this way all observables in the model can be expressed in terms of analytical formulas. In this note only the 1+1-dimensional version of the model is treated but we end with remarks on the extensions to gluonic radiation, transverse momentum generation etc, to be performed in future papers.Comment: 15 pages, 7 figure

What We Cannot Learn from the Irish Experience: A fundamental Asymmetry of Asymmetric Shocks

A simple N-country specific-factor model with imperfectly mobile labour is developed. It is shown that effects of country-specific productivity shocks hitting a small country are fundamentally asymmetric. A positive shock will be accomodated by a moderate wage increase and sizable in-migration, whereas a negative shock will be accomodated by a significant decrease in wages and moderate out-migration. The effects of shocks in a monetary union are discussed, and it is argued that the results are consistent with the recent Irish experience. The welfare effects of small economics fluctuations are also discussed.migration; assymmetric shocks;

Corporatism and Economic Performance

This paper models corporatism as affecting both the preferences of the parties involved as well as the rules of the game. The analysis is conducted in a union-government game on determining wages and unemployment benefits. The result indicates that international conditions might be important for the functions of the concept of corporatism. It may also serve as an explanation to the poor performance on production and employment in some of the former so successful European corporatist states in the 1990s. The implication of this is that corporatism might not be a successful social organisation in the globalised economy.Corporatism; Interest groups; Labour unions

Tax Competition and Economic Geography

Tax competition between two countries is considered in a trade- and-location setting with differentiated products and monopolistic competition. There are two groups of workers, mobile ones and immobile ones. Taxes are used for producing a public good. It is shown that an equilibrium with mobile workers dispersed across countries is destabilised by increased taxes on these mobile workers|and this is shown to be true also for perfectly coordinated tax increases. It is also shown that an agglomeration is taxable, and that increasing public spending may relax the minimum tax pressure on immobile workers consistent with preserv-ing an agglomeration.JEL Classi¯cation: F12; F15; F21; R12 agglomeration; economic geography; tax competition