Documentos de trabajo

We integrate data from commercial operations, non-market private amenities and capital gains to measure landowner income and profitability in six oak woodland case studies from Spain and California. Results show that private amenities make the greatest contribution to landowner income, while commercial benefits alone fall short of explaining land prices. We also estimate landowner self-... Seguir leyendo

We estimate the total social income delivered by a simulated Stone pine (Pinus pinea L.) afforestation investment in Huelva province, Spain. We consider the following private and public products: timber, pinecones, forestry conservation services, landowner amenities, landscape conservation, public recreation and carbon sequestration services. We show how total income of each single... Seguir leyendo

In this article, we focus on the need for “human computing” in data-rich ecosystems, notably as a consequence of data variety and typically for name disambiguation, and explore ways to manage it via online platforms for paid crowdsourcing. Based on several studies of Amazon Mechanical Turk, a well-established platform for matching data treatment tasks to human beings willing to carry them out... Seguir leyendo

We compare contingent valuation and choice modeling with field and eye-tracker data. Contrary to previous research, results yield significantly different structural models. These divergences remain for modified formats that minimize visual and cognitive differences between formats. We also find divergent results concerning information processing. In choice modeling, respondents devote more... Seguir leyendo

We investigate transitions among crop, grass and forest land uses in Andalusia (Spain) through an econometric model that uses individual land use decisions observed in the Corine Land Cover database as dependent variable, and net income, subsidies and biophysical and environmental factors as explanatory variables. Using multinomial logit models (fixed and random parameters), we identify both... Seguir leyendo

The aim of this paper is to describe a matching and disambiguation methodology for the identification of author-inventors located in the same country. It aims to maximize precision and recall rates by taking into account national name writing customs in the name matching stage and by including a recursive validation step in the person disambiguation stage. An application to the identification... Seguir leyendo

This paper analyses public support for government spending on science and technology (S&T) and its determinants. It constructs hypotheses based on previous findings from two streams of research: public preferences for government spending and public understanding of science. Using data from a large national survey in Spain, it develops multivariate models to test the relevance of various... Seguir leyendo

A contingent valuation technique was applied to a 2004 sample of oak woodland landowners in California to assess its usefulness in estimating the non-market income and land price value of oak woodland properties. Non-market benefits have long been considered an important influence on rangeland landowners, but beyond comparing market production and land price, few studies have attempted to... Seguir leyendo

This paper defining the causes which underlie a public policy: Forum for immigrant participation. Little is known about the specific motivations which lead different governments’ decisions to institute such policies. This process cannot only refer to the theoretical objectives, but must consider the context in which certain Governments are brought to implement such policies while others do not... Seguir leyendo

Much has been made of the low returns on investment for western rangeland ranching. However, little work has been done to empirically compare these returns to the return that would be demanded by financial markets from assets with similar risk and return characteristics. This study uses historical forage productivity data from three locations in California’s Mediterranean rangelands to... Seguir leyendo