Gender Differences in the Intergenerational Earnings Mobility of Second-Generation Migrants

This study analyzes gender diff erences in the intergenerational earnings mobility of second-generation migrants in Germany. The analysis takes into account potential infl uences like assortative mating in the form of ethnic marriages and the parental integration measured by parents’ years since migration. First, intergenerational earnings elasticities are estimated at the mean and along the earnings distribution. The results do not reveal large diff erences in the intergenerational mobility – neither between natives and migrants nor between men and women. Second, intergenerational changes in the relative earnings position are analyzed. The results show that migrants are less likely than natives to worsen their relative earnings position while they have the same probability as natives to improve their earnings position. In summary, migrants are mostly as (im)mobile as the native population.International migration; second-generation migrants; intergenerational mobility; marriage

Labor Market Effects of Immigration: Evidence from Neighborhood Data

This paper combines individual-level data from the German Socio-Economic Panel (SOEP) with economic and demographic postcode-level data from administrative records to analyze the effects of immigration on wages and unemployment probabilities of high- an

Hierarchies of Predominantly Connected Communities

We consider communities whose vertices are predominantly connected, i.e., the vertices in each community are stronger connected to other community members of the same community than to vertices outside the community. Flake et al. introduced a hierarchical clustering algorithm that finds such predominantly connected communities of different coarseness depending on an input parameter. We present a simple and efficient method for constructing a clustering hierarchy according to Flake et al. that supersedes the necessity of choosing feasible parameter values and guarantees the completeness of the resulting hierarchy, i.e., the hierarchy contains all clusterings that can be constructed by the original algorithm for any parameter value. However, predominantly connected communities are not organized in a single hierarchy. Thus, we develop a framework that, after precomputing at most $2(n-1)$ maximum flows, admits a linear time construction of a clustering \C(S) of predominantly connected communities that contains a given community $S$ and is maximum in the sense that any further clustering of predominantly connected communities that also contains $S$ is hierarchically nested in \C(S). We further generalize this construction yielding a clustering with similar properties for $k$ given communities in $O(kn)$ time. This admits the analysis of a network's structure with respect to various communities in different hierarchies.Comment: to appear (WADS 2013

HEALTH, FOOD SAFETY AND MEAT DEMAND

For nearly two decades, the U.S. beef industry has faced a long term structural change, which has resulted in consumers shifting from beef to chicken. This shift has occurred due to consumer concerns on cholesterol consumption. More recently, this industry has confronted new challenges on the safety of beef, due to the potential presence of biological contaminants. This study incorporates a measure on food safety with a measure on health information in a meat demand system. Beef safety information is found to have a modest impact on beef demand, but is dominated by health information.meat demand, health, food safety, LA/AIDS, Food Consumption/Nutrition/Food Safety, Livestock Production/Industries,

Labor Market Effects of Immigration: Evidence from Neighborhood Data

This paper combines individual-level data from the German Socio-Economic Panel (SOEP) with economic and demographic postcode-level data from administrative records to analyze the effects of immigration on wages and unemployment probabilities of high- and low-skilled natives. Employing an instrumental variable strategy and utilizing the variation in the population share of foreigners across regions and time, we find no support for the hypothesis of adverse labor market effects of immigration.international migration, effects of immigration

Labor Market Effects of Immigration: Evidence from Neighborhood Data

This paper combines individual-level data from the German Socio-Economic Panel (SOEP) with economic and demographic postcode-level data from administrative records to analyze the effects of immigration on wages and unemployment probabilities of high- and low-skilled natives. Employing an instrumental variable strategy and utilizing the variation in the population share of foreigners across regions and time, we find no support for the hypothesis of adverse labor market effects of immigration.

Correlating monotonous crystal-rich dacitic ignimbrites in Dominica: The Layou and Roseau Ignimbrite

Dominica is a small island in the Lesser Antilles island arc. It has the highest concentrations of potentially active volcanoes in the world and features several large Pleistocene pyroclastic deposits that extend to the sea. Two of the ignimbrites emanate from central Dominica, with pyroclastic deposits filling the Layou and Roseau river valleys. Based on topography, the Layou Ignimbrite is believed to be from Morne Trois Pitons, whereas the Roseau Ignimbrite is derived from vents in the Wotten Waven region. On the coast in the village of Layou, the Layou Ignimbrite is 13 m thick with a basal large block and ash flow unit, with hornblende andesite clasts up to 0.5 m. This is overlain by a 10 cm pumice lapilli fall unit and a ~5 m thick unconsolidated horizon that contains pumice clasts that range from approximately up to 14 cm and sparse 2-5 cm andesite lithics. There is no evidence of paleosol horizons. The basal Roseau Ignimbrite in Goodwill Quarry is 19 m thick and stratified, with pumice clasts that range from 3-8 cm. The outcrop does not contain a block and ash flow unit, but has multiple pyroclastic flow units and an air-fall pumice deposit, all of which are separated by paleosol horizons (Sigurdsson, 1972). Both ignimbrites are dacitic, 59-65% SiO2 for Roseau and 58-66% SiO2 for Layou. Both ignimbrites have comparable major and trace element chemistry, typical of an island arc, with enrichment of LILE and depletion of HFSE. The ignimbrites are crystal-rich (19-35 vol%) and have a mineral assemblage of plagioclase + hornblende + orthopyroxene + oxides, but the abundance of hornblende is higher in Layou (1.1-3.1%) than in Roseau (\u3c0.6%) and hornblende crystals are slightly larger in Layou than in Roseau. Texturally, the distal pumices are comparable, suggesting a similar eruptive style and transport, with ~45% vesicularity and vesicle areas of .01-.05 mm2. Although these two pyroclastic deposits appear to be from different vents, our results and their similarities suggest that they may have tapped the same magma chamber at different times. Phase assemblages, crystal sizes, and vesicle sizes of pumice clasts are remarkably similar between all unwelded and welded samples. However, whole-rock major and trace element chemistry of the unwelded samples differ greatly from the welded samples, which have highly varying compositions and lower silica content (58-60%)

Artist Statement

I am a senior majoring in German and minoring in art history, and am especially interested in German visual culture in the twentieth century. My thesis topic is the role that publicity and fame play in the preservation of architecture, specifically in German mass-housing developments built in the 1920s and early 1930s by progressive architects working in the Modernist style. In my opinion, what was written about them over the years influenced their reputation and has led historians to hold the physical structures in high regard. The significance of the architecture stems in part from the fact that: a) the architects themselves were eager to publicize and promote their theories; b) there were many exhibitions and therefore catalogs, press releases, and critiques drafted of avant-garde designs and applied arts; and c) these buildings fulfilled a much-discussed and often-politicized need for urban housing in post-World War I Germany