This paper presents some two-step estimators for a wide range of parametric panel data models with censored endogenous variables and sample selection bias. Our approach is to derive estimates of the unobserved heterogeneity responsible for the endogeneity/selection bias to include as additional explanatory variables in the primary equation. These are obtained through a decomposition of the redu...

Economies of Scale in European Manufacturing Revisited* We test for internal and external economies of scale in European manufacturing, employing a more disaggregated data set than has been used in earlier analyses. We aim to separate externalities from common business cycle effects. Fifteen European manufacturing industries in France, Germany, Italy and the UK are analysed. We focus on economi...

The acoustic phonons of cyclotrimethylene trinitramine (RDX) have been studied using Brillouin scattering. The analysis of the acoustic-phonon velocities allowed determination of the complete stiffness tensor for this energetic material. The results are compared to other recent experimental and theoretical determinations of the RDX elastic constants, bulk moduli, and shear moduli. The observed ...

Scarring Effects of Remaining Unemployed for Long-Term Unemployed School-Leavers This study investigates whether and to what extent further unemployment experience for youths who are already long-term unemployed imposes a penalty on subsequent labor market outcomes. We propose a flexible method for analyzing the effect on wages aside of transitions from unemployment and employment within a mult...

Dipole sonic log data recorded in a vertical pilot well and the associated production well are analyzed over a 200 × 1100-ft section of a North American gas shale formation. The combination of these two wells enables angular sampling in the vertical direction and over a range of inclination angles from 54° to 90°. Dipole sonic logs from these wells show that the formation’s average properties a...

Several empirical studies are concerned with measuring the effect of currency and current account crises on economic growth. Using different empirical models this paper serves two aspects. It provides an explicit assessment of country specific factors influencing the costs of crises in terms of economic growth and controls via a treatment type model for possible sample selection governing the o...

This paper develops a new spectral approach to the estimation of the number of latent factors in large dimensional factor models. It shows that by imposing restrictions on the error terms we can derive a consistent procedure with improved finite sample performance in the presence of weak factors. The paper uses free probability theory to derive analytic expressions for the limiting moments of t...

The enlargement of the EU has implications for the national defence requirements and therefore national defence policy of European nations. In light of the freedom of movement of citizens between member states it is appropriate to consider the implications of a country’s military expenditure for it’s macroeconomy and specifically on the flows of migration between member states. Traditionally in...

We develop a two-country, dynamic general equilibrium model that links cross-country differences in net foreign asset and consumption dynamics to differences in discount factors and steady-state levels of productivity. We compare the results of the model to those of VARs for the G3 economies. We identify country-specific productivity shocks by assuming that productivity does not respond contemp...

Abstract The Italian market of sparkling wines increases as volume and assortment (such brands, appellations, typologies) mainly because Prosecco consumption. We investigate the repeated purchase behavior in two years within supermarket channel through scanner data collected from a consumer panel. propose Hidden Markov Model to analyze these data, assuming an unobservable process capture consum...