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A Caseworker Like Me -Does The Similarity Between Unemployed And Caseworker Increase Job Placments?

This paper examines whether the chances of job placements improve if unemployed persons are counselled by caseworkers who belong to the same social group, defined by gender, age, education, and nationality. Based on an unusually informative dataset, which links Swiss unemployed to their caseworkers, we find positive employment effects of about 4 percentage points if caseworker and…

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English / 27/03/2008

Antisocial Punishment Across Societies

We document the widespread existence of antisocial punishment, that is, the sanctioning of people who behave prosocially. Our evidence comes from public goods experiments that we conducted in 16 comparable participant pools around the world. However, there is a huge cross-societal variation. Some participant pools punished the high contributors as much as they punished the low…

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English / 07/03/2008

Performance Assessments With Microworlds and Their Difficulty

The use of microworlds (MWs), or complex dynamic systems, in educational testing and personnel selection is hampered by systematic measurement errors because these new and innovative item formats are not adequately controlled for their difficulty. This empirical study introduces a way to operationalize an MW's difficulty and demonstrates the strong effects of variations in it. A…

English / 01/03/2008

Biofuels and WTO Disciplines

Given the sharp rise in crude oil prices and growing awareness of climate change, the potential of biofuels, particularly of bioethanol, has become an ubiquitous topic of public debate and has induced ambitious policy initiatives. The latter are mostly paired with protectionist measures as the examples of the European Union and the United States show, where domestic producers of…

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English / 01/03/2008

Public Employment Services and Employers - How Important are Networks with Firms?

This paper examines whether contacts between caseworkers in public employment offices and employers impact on the reemployment chances of the unemployed they counsel. This analysis is made possible through a large administrative dataset on unemployed combined
with an extensive survey of caseworkers' characteristics and their strategies. This data was created for evaluating…

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English / 26/02/2008

Simulation-Based Pricing of Convertible Bonds

We propose and empirically study a pricing model for convertible bonds based on Monte Carlo simulation. The method uses parametric representations of the early exercise decisions and consists of two stages. Pricing convertible bonds with the proposed Monte Carlo approach allows us to better capture both the dynamics of the underlying state variables and the rich set of real-world…

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English / 12/02/2008

A Note on Endogenous Control Variables in Evaluation Studies

The issue of potentially endogenous control variables in causal studies based on the assumption of no selection bias conditional on observables (conditional independence assumption, CIA) is discussed. The paper shows that the standard formulation of the CIA obscures the endogeneity problem. It suggests a CIA based on potential variables together with explicit exogeneity conditions,…

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English / 01/02/2008

What Did All the Money Do? On the General Ineffectiveness of Recent West German Labour Market Programmes

We provide new evidence on the effectiveness of West German labour market programmes by evaluating training and employment programmes that have been conducted 2000-2002 after the first large reform of German labour market policy in 1998. We employ exceptionally rich administrative data that allow us to use microeconometric matching methods and to estimate interesting effects for…

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English / 01/02/2008

Estimation of quantile treatment effects with STATA

WARNING: this page is no longer updated. Go to http://www.econ.brown.edu/fac/Blaise_Melly/ to find the current version of the codes.
News: This paper will be published by the Stata Journal soon. Therefore, it can nolonger be downloaded from this page.
In this paper, we discuss the implementation of various…

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English / 01/01/2008

Unconditional quantile treatment effects under endogeneity

This paper develops IV estimators for unconditional quantile treatment effects (QTE) when the treatment selection is endogenous. In contrast to conditional QTE, i.e. the effects conditional on a large number of covariates X, the unconditional QTE summarize the effects of a treatment for the entire population. They are usually of most interest in policy evaluations because the results…

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English / 01/01/2008

Privatization and Changes in the Wage Structure - Evidence from Firm Personnel Records

We investigate the wage effects of privatization using person-level firm-based panel datasets from one privatized and one nonprivatized public sector firm in the same country for the years immediately before and after privatization. Thus, we can analyze the before-after effects of privatization while controlling for individual and time fixed effects and allowing for firm-specific…

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English / 01/01/2008

DEVA+ (Dynamic Expectation Variance Analysis), Product Description

The existence of changing correlation structures needs to be taken into account when modelling an asset allocation situation. DEVA + (Dynamic Expectation Variance Analysis) is a multiperiod stochastic optimization approach to identify the optimal tactic and strategic asset allocation. The identified allocation strategies are efficient in a multiperiod context, i.e…

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English / 01/01/2008

When Investors Enjoy Less Policy Risk: Divided Government, Economic Policy Change, and Stock Market Volatility in Germany, 1970-2005

How does divided government affect the probability of economic policy change, and thus policy risk on financial markets? In contrast to the standard balancing model we argue that divided government, i.e., partisan conflict between the executive and the legislative branches, negatively affects the possibility of economic policy change. Using a simple spatial model we demonstrate that…

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English / 01/01/2008

The Performance of Funds of Hedge Funds: Do Experience and Size Matter?

This paper is the first to use quantile regression to analyze the impact of experience and size of funds of hedge funds (FHFs) on performance. In comparison to OLS regression, quantile regression provides a more detailed picture of the influence of size and experience on FHF return behaviour. Hence, it allows us to study the relevance of these factors for various return and risk…

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English / 01/01/2008

Matching Estimation of Dynamic Treatment Models : Some Practical Issues

Lechner and Miquel (2001) approached the causal analysis of sequences of interventions from a potential outcome perspective based on selection on observable type of assumptions (sequential conditional independence assumptions). Lechner (2004) proposed matching estimators for this framework. However, many practical issues that might have substantial consequences for interpretation of…

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English / 01/01/2008

Parametric Binary Choice Models

This paper discusses the estimation of binary choice panel data models. We begin with different versions of the static random effects model when the explanatory variables are strictly exogenous. Depending on the autocorrelation structure of the errors, different
estimators are available and we detail their attractiveness in each situation by trading-off their efficiency and…

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English / 01/01/2008

Effects of the onset of an adverse health condition on the retirement decision of European workers

This paper estimates the effect of experiencing the onset of an adverse health condition on the retirement decision of European workers. Conditional on institutional characteristics (country and individual dependent) and a selection of socioeconomic and demographic characteristics of the individual, we are able to net out the effect of health conditions that occur before the decision…

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English / 01/01/2008

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