نتایج جستجو برای: c31

تعداد نتایج: 361  

2015
Daniel Avdic Tugba Büyükdurmus Thomas K. Bauer Wolfgang Leininger

We contribute to the literature on the determinants of socioeconomic health disparities by studying how the health behavior of adolescents may arise from the degree of communication between parent and child. Parent-child communication may function as a mediator between family background and subsequent poor health behavior, potentially reconciling previous mixed evidence on the relationship betw...

2013
Chris Rohlfs Ryan Sullivan Thomas J. Kniesner Morgan Stanley

Hedonic Estimation under Very General Conditions Using Experimental and Quasi-Experimental Designs This paper develops a generalized hedonic model in which an exogenous shock to a single product attribute can affect other attributes, the markets for the product’s complements and substitutes, and aggregate quantity produced. These factors are shown to be empirically relevant and to cause bias in...

2014
Jianjun Wang Liqi Chen Li Li Jianhua He Jian Chen Chuanjie Jiang Weiguo Wang Sabrina Li Yiliang Li Rui Zhang

A major challenge in palaeohydrology is the extraction of continuous palaeoflood information from geophysical records. A high-resolution sediment core off the Minjiang estuary area in the Taiwan Strait, SE China, records the sedimentation history from approximately 1660 to the present. The alkane ratio C31/C17, a classic organic geochemical indicator of terrestrial/aquatic matter, peaks in the ...

2017
KONRAD MENZEL

We consider a random utility model of strategic network formation, where we derive a tractable approximation to the distribution of network links using many-player asymptotics. Our framework assumes that agents have heterogeneous tastes over links, and allows for anonymous and non-anonymous interaction effects among links. The observed network is assumed to be pairwise stable, and we impose no ...

1997
Stefan Klotz Winfried Pohlmeier

This paper analyzes the impact of the skill composition of the working labor force on the innovative activity of firms when there is both an imperfect labor market and monopolistic competition on the product market. The labor market imperfections arise through a kind of insider outsider mechanism where in the bargaining round the union attaches a greater weight to the wage and employment intere...

Journal: :Management Science 2018
Decio Coviello Andrea Guglielmo Giancarlo Spagnolo

We run a regression discontinuity design analysis to document the causal effect of increasing buyers’ discretion on procurement outcomes in a large database for public works in Italy. Works with a value above a given threshold have to be awarded through an open auction. Works below this threshold can be more easily awarded through a restricted auction, where the buyer has some discretion in ter...

2011
Yin-Wong Cheung Eiji Fujii

We investigate the implications of the new price information in the latest International Comparison Program (ICP) survey for evaluating the year 2005 exchange rate misalignment estimates. A decomposition exercise reveals that the misalignment revisions are substantially affected by the ICP price updates. Two measurement-related and four economic factors are used to explain the differences in mi...

2017
Daniel Torres Pedro Arcelus-Arrillaga Marcos Millan José Luis Pinilla Isabel Suelves

A sustainable and effective method for de-oxygenation of few-layer graphene oxide (FLGO) by glycerol gasification in supercritical water (SCW) is described. In this manner, reduction of FLGO and valorization of glycerol, in turn catalyzed by FLGO, are achieved simultaneously. The addition of glycerol enhanced FLGO oxygen removal by up to 59% due to the in situ hydrogen generation as compared to...

2012
Christoph Rothe Dominik Wied

Misspecification Testing in a Class of Conditional Distributional Models We propose a specification test for a wide range of parametric models for the conditional distribution function of an outcome variable given a vector of covariates. The test is based on the Cramer-von Mises distance between an unrestricted estimate of the joint distribution function of the data, and a restricted estimate t...

2006
Nicolai Kristensen

Self-evaluations of program impact, notably subjective evaluations of the e¤ects of training, are wide-spread in both the public and the private sector – probably because self-evaluations o¤er an easy and low-cost alternative to rigorous experimental or econometric evaluations. In this paper, I analyze how subjective assessments of satisfaction with training compare to objective measures based ...

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