Structural Vector Autoregressions with Imperfect Identifying Information
Christiane Baumeister, James D. Hamilton
American Economic Association Papers and Proceedings,
May
2022
Abstract
The problem of identification is often the core challenge of empirical economic research. The traditional approach to identification is to bring in additional information in the form of identifying assumptions, such as restrictions that certain magnitudes have to be zero. In this paper, we suggest that what are usually thought of as identifying assumptions should more generally be described as information that the analyst had about the economic structure before seeing the data. Such information is most naturally represented as a Bayesian prior distribution over certain features of the economic structure.
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11.02.2019 • 3/2019
No-deal Brexit would hit the German labour market particularly hard
The United Kingdom leaving the European Union without a deal would have consequences for international trade and labour markets in many countries, including outside Europe. Calculations by the Halle Institute for Economic Research (IWH) indicate: More than 600,000 jobs may be affected worldwide, but nowhere as many as in Germany.
Oliver Holtemöller
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Censored Fractional Response Model: Estimating Heterogeneous Relative Risk Aversion of European Households
Qizhou Xiong
IWH Discussion Papers,
No. 11,
2015
Abstract
This paper estimates relative risk aversion using the observed shares of risky assets and characteristics of households from the Household Finance and Consumption Survey of the European Central Bank. Given that the risky share is a fractional response variable belonging to [0, 1], this paper proposes a censored fractional response estimation method using extremal quantiles to approximate the censoring thresholds. Considering that participation in risky asset markets is costly, I estimate both the heterogeneous relative risk aversion and participation cost using a working sample that includes both risky asset holders and non-risky asset holders by treating the zero risky share as the result of heterogeneous self-censoring. Estimation results show lower participation costs and higher relative risk aversion than what was previously estimated. The estimated median relative risk aversions of eight European countries range from 4.6 to 13.6. However, the results are sensitive to households’ perception of the risky asset market return and volatility.
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Current Trends - Brisk innovation activity in East Germany
Jutta Günther
Wirtschaft im Wandel,
No. 6,
2003
Abstract
Innovationen sind ein wesentlicher Indikator zur Beurteilung der Wettbewerbsfähigkeit der Be-triebe. In der Innovationsstatistik werden auf Unternehmensebene drei verschiedene Typen von Produktinnovationen unterschieden: a) die wesentliche Verbesserung bzw. Weiterentwicklung bestehender Produkte, b) die Erweiterung der Produktpalette um bereits am Markt vorhandene Produkte und c) die Einführung von völlig neuen Produkten am Markt. Entgegen aller Erwartungen sind die ostdeutschen Betriebe auf allen drei Feldern der Produktinnovationstätigkeit aktiver als die westdeutschen. Insgesamt betrachtet führten 46,2% der ostdeutschen aber nur 42,6% der westdeutschen Betriebe in den Jahren 1999-2000 wenigstens eine der drei Produktinnovationen durch.
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