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Sample selectivity and the validity of international student achievement tests in economic research

Hanushek, Eric Alan; Woessmann, Ludger - 2010

Critics of international student comparisons argue that results may be influenced by differences in the extent to which countries adequately sample their entire student populations. In this research note, we show that larger exclusion and non-response rates are related to better country average...

Persistent link: https://www.econbiz.de/10010274188

Biokraftstoffe: Eine weltwirtschaftliche Perspektive

Henke, Jan Michael - 2005

Biokraftstoffe werden weltweit in immer mehr Ländern von der Politik gezielt gefördert. Dies geschieht aus agrar-, energie- und klimapolitischen Gründen. Dieser Beitrag beschreibt die derzeitigen und zukünftigen Märkte für Biokraftstoffe und die Förderprogramme in einzelnen Ländern....

Persistent link: https://www.econbiz.de/10010274193

Skill policies for Scotland

Heckman, James Joseph; Masterov, Dimitriy V. - 2005

This paper argues that skill formation is a life-cycle process and develops the implications of this insight for Scottish social policy. Families are major producers of skills, and a successful policy needs to promote effective families and to supplement failing ones. Targeted early...

Persistent link: https://www.econbiz.de/10010274195

Skill Policies for Scotland

Heckman, James Joseph; Masterov, Dimitriy V. - 2004

Persistent link: https://www.econbiz.de/10010274209

Globale Einkommensdisparitäten und -polaritäten

Henrich, Károly - 2004

Die These, die neuere Globalisierung der sozioökonomischen Beziehungen habe die kontinuierliche, erweiterte Reproduktion sozialer Ungleichheit hervorgebracht, ist nur bedingt haltbar. Tatsächlich begann, nachdem noch um das Jahr 1000 die Durchschnittseinkommen in den verschiedenen Weltregionen...

Persistent link: https://www.econbiz.de/10010274222

Representing GASPEC with the World Gas Model

Egging, Ruud; Holz, Franziska; von Hirschhausen, … - 2008

countries, sometimes called GASPEC. We use the World Gas Model, a dynamic, strategic representation of world gas production … North America would be affected more than other parts of the world. Lastly, the vulnerability of gas importers worldwide on …

Persistent link: https://www.econbiz.de/10010274286

The world gas market in 2030: development scenarios using the world gas model

Huppmann, Daniel; Egging, Ruud; Holz, Franziska; … - 2009

In this paper, we discuss potential developments of the world natural gas industry at the horizon of 2030. We use the … World Gas Model (WGM), a dynamic, strategic representation of world natural gas production, trade, and consumption between … 2005 and 2030. We specify a base case which defines the business-as-usual assumptions based on forecasts of the world …

Persistent link: https://www.econbiz.de/10010274288

The globalization of steam coal markets and the role of logistics: an empirical analysis

Zaklan, Aleksandar; Cullmann, Astrid; Neumann, Anne; … - 2009

In this paper, we provide a comprehensive multivariate cointegration analysis of three parts of the steam coal value chain - export, transport and import prices. The analysis is based on a rich dataset of international coal prices; in particular, we combine data on steam coal prices with freight...

Persistent link: https://www.econbiz.de/10010274289

The influence of collusion on price changes: New evidence from major cartel cases

von Blanckenburg, Korbinian; Geist, Alexander; … - 2010

In this paper, we compare the distribution of price changes between collusive and noncollusive periods for ten major cartels. The first moments focus on previous research. We extend the discussion to the third (skewness) and fourth (kurtosis) moments. However, none of the above descriptive...

Persistent link: https://www.econbiz.de/10010274410

Labor market policy: A comparative view on the costs and benefits of labor market flexibility

Kahn, Lawrence M. - 2010

I review theories and evidence on labor market policies and institutions in an international context. These include collective bargaining, minimum wages, employment protection laws, unemployment insurance (UI), mandated parental leave, and active labor market policies. Scandinavia and Central...

Persistent link: https://www.econbiz.de/10010274420