نتایج جستجو برای: c33

تعداد نتایج: 541  

2003
Linda Y. Wong

Only 5.5 percent of black males married white females in 1990, and the family-income premium for intermarried black males was 7 percent. This paper estimates the impact of the mating taboo, courting opportunities, and individual endowments on the black male marriage market. Results indicate that eliminating the mating taboo would raise the intermarriage rate from 5.5 to 64 percent, and do away ...

2015
Viola Angelini Marco Bertoni Luca Corazzini

Using longitudinal data from the German Socio-Economic Panel (SOEP), we show that paternal unemployment has a surprisingly positive causal effect on the “Big 5” personality traits of children aged 17 to 25. In particular, our results from longitudinal value-added models for personality suggest that paternal unemployment makes children significantly more conscientious and less neurotic. Our resu...

2005
Axel Heitmüller

A Note on Decompositions in Fixed Effects Models in the Presence of Time-Invariant Characteristics Though theoretically appealing and very popular amongst labour economists, the interpretation of the unexplained part of the Oaxaca (1973) decomposition as discrimination rather than an omitted variable problem in cross-section data has often been criticised. In this note it is shown that this pro...

2009
Margarita Genius Spiro E. Stefanou Vangelis Tzouvelekas

− A theoretical framework is developed for decomposing partial factor productivity and measuring technical inefficiency when the underlying technology is characterized by factor non-substitution. With Farrell’s (1957) radial index of technical inefficiency being inappropriate in this case, Russell’s (1985; 1987) non-radial indices are adapted to measure technical inefficiency in a Leontief mode...

2016
Runar Brännlund Jonas Nordström Dick Svedin

In this paper, we study how foreign ownership of Swedish companies affects employment and wages. To study these effects, we specify a model based on the assumption that the Swedish labour market can be described as one where trade unions and employers bargain over employment and wages. Our hypothesis is that bargaining power is affected by institutional settings and the ownership of the firm. T...

Journal: :Computational Statistics & Data Analysis 2012
Badi H. Baltagi Georges Bresson Alain Pirotte

Forecasting with Spatial Panel Data This paper compares various forecasts using panel data with spatial error correlation. The true data generating process is assumed to be a simple error component regression model with spatial remainder disturbances of the autoregressive or moving average type. The best linear unbiased predictor is compared with other forecasts ignoring spatial correlation, or...

Journal: :Organic & biomolecular chemistry 2009
Jun Cheng Tsutomu Hoshino

The enzymatic cyclization reaction of polyprenoid C(33) by squalene-hopene cyclase (SHC) was investigated with the intention of creating an unnatural hexacyclic compound. The enzymatic products consisted of mono-, bi-, tri-, tetra- and pentacyclic skeletons; however, hexacyclic products were not generated, contrary to our expectations. The absence of a hexacyclic skeleton indicated that the ent...

2000
Germán Coloma

This paper applies a model of market power measurement under product differentiation to the case of the gasoline market in California, using data for the period 1983-1989. Our results show that there is a considerable degree of product differentiation among major brands. This allows firms to exercise local market power over their own specific products, but there are also signals of an important...

1999
Rosa Bernardini Papalia Silvia Bertarelli

The aim of this paper is to study the probability to find an opportunity of collaboration among small and medium sized firms by participating in the Europartenariat meeting created to encourage co-operation links. Contacts among firms are relatively few in number and are assumed to be generated by a Poisson process. Empirical results of different Poisson regression models with reference to para...

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