88 research outputs found
WAGES AND LABOR INCOME IN HISTORY: A SURVEY
No full textIncome distribution has been a main topic in economics since the days of Gregory King and William Petty. In this paper some empirical issues in the study of labor income are surveyed in the light of economic history, including the hypothesis of the stability of factor shares across time and space and the relative importance of raw labor and human capital in labor income.
Wages and labor income in history : a survey.
No full textIncome distribution has been a main topic in economics since the days of Gregory King and William Petty. In this paper some empirical issues in the study of labor income are surveyed in the light of economic history, including the hypothesis of the stability of factor shares across time and space and the relative importance of raw labor and human capital in labor income.
Wages and labor income in history : a survey
No full textIncome distribution has been a main topic in economics since the days of Gregory King and William Petty. In this paper some empirical issues in the study of labor income are surveyed in the light of economic history, including the hypothesis of the stability of factor shares across time and space and the relative importance of raw labor and human capital in labor income
Evaluatie van gezamenlijke kennisproductie
No full textDe vraag die in deze publicatie centraal staat luidt: hoe kan onderzoek zo worden georganiseerd dat het bijdraagt aan de oplossing van grote maatschappelijke vraagstukken?Kenniscoproductie gaat niet vanzelf. Het combineren van verschillende vormen van kennis is buitengewoon complex. De arrangementen in deze bundel laten zien dat kenniscoproductie mogelijk is, maar dat extra inspanningen nodig zijn. Uit de beschrijving van de arrangementen die in dit rapport zijn gepresenteerd, trekken we zes conclusies over de organisatie en inbedding van kenniscoproductie
Descriptive Statistics at Author Level for Laureates and Non-Laureates.
No full text<p>* = P<0.05—Wilcoxon Rank Sum Test of Median Difference between independent samples. The total number of sole authored papers was divided by the total number of papers for each primary author. The same was done for first author percentages, except sole authored publications were first subtracted. Authors were disambiguated with VantagePoint Software and then aggregated for each primary author.</p><p>Descriptive Statistics at Author Level for Laureates and Non-Laureates.</p
Miracle Cure for an Economy in Crisis? Colonial Exploitation as a Source of Growth in the Netherlands, 1815–1870
No full textComparative advantages as drivers of scientific specialisation: do countries need specific or generic policies?
No full textAtlanta Conference on Science and Innovation Policy 201
Investeren in onderzoeksfaciliteiten: prioritering, financiering, consequenties
No full textGrootschalige onderzoeksfaciliteiten zijn van essentieel belang voor een concurrerend en duurzaam wetenschappelijk systeem. De kosten die met grootschalige faciliteiten zijn gemoeid, zijn zeer hoog en strekken zich uit over een lange periode. Met het vele geld zijn grote belangen gemoeid. De overweging om te investeren moet dan ook op goede gronden zijn gebaseerd. Verschillende landen ontwikkelen roadmaps voor investeringen in grootschalige onderzoeksfaciliteiten, geïnspireerd door de roadmap van ESFRI, het European Strategy Forum on Research Infrastructures. De Nederlandse roadmap voor grootschalige onderzoeksfaciliteiten is opgesteld door de commissie Van Velzen en in oktober 2008 gepresenteerd. Dit rapport doet verslag van een vergelijking van de prioritering en financiering van investeringen in grootschalige onderzoeksfaciliteiten in Australië, Duitsland, Denemarken, Spanje, het Verenigd Koninkrijk, de Verenigde Staten en Zweden. Daarnaast gaan we dieper in op de risico’s en consequenties van een investeringsbeslissing
Modeling firn densification through viscosity and microstructures
No full textThesis (Master's)--University of Washington, 2019Knowledge of firn densification is important for several applications, such as for ice-sheet surface elevation changes from repeat satellite altimetry methods used to estimate ice-sheet contribution to sea-level rise. Uncertainties in firn-densification rates are among the largest uncertainties for this method mainly because most commonly-used firn-densification models are empirically constructed for estimating the macroscopic behavior of the firn. Currently, no model that is either fully physically-based or is applicable to the entire firn column exists. First, we examine the implicit effective viscosity for models within the Community Firn Model (CFM) under a range of climatic conditions, and find that there exist physically unrealistic discontinuities in viscosity at the transitional density of 550 kg m-3. To generate a continuous viscosity curve, we develop a transition model that gradually transitions processes in zone 1 to those in zone 2 of the firn layer. We use the transition model for estimating depth- density for a range of climates, and we generally see that the transition model shows lower RMSE values compared to the Herron and Langway (1980) model for climatic sites that do not have a regular Clausius-Clapeyron pairing of temperature and accumulation rate, or sites that are influenced by other factors (e.g., horizontal strain, wind). However, the results highlight the limitations of constructing a model empirically. 3 Next, we develop a model that modifies a relationship from previous work to estimate the densification rate through viscosity and the evolution of microstructures. We define microstructural evolution by using micro-CT data from USP50 near South Pole, and run our model for USP50 as well as several other sites. Our results show good agreement; however, more work is necessary to further develop this model, including the collection of more microstructure data. Nevertheless, our research provides a key step towards producing a firn- densification model that estimates firn properties on the microscale and that can potentially be used in a range of climatic conditions and during climate transients
- …
