Monopoly Price Discrimination and Demand Curvature

Published as an article in: American Economic Review, 2010, vol. 100, issue 4, pages 1601-15.

Energy Supply and the Sustainability of Endogenous Growth

29 p.

Price Premium for High-Efficiency Refrigerators and Calculation of Price-Elasticities for Close-Substitutes: Combining Hedonic Pricing and Demand Systems

21 p.

Key business factors for eco-innovation: an overview of recent firm-level empirical studies

[EN] The increasing interest in eco-innovation or environmental innovation as a strategy not only to address the serious global environmental problems but also as a source of competitive advantages for companies and for the emergence of new business areas, leads us to try to identify the different factors that act as determinants of its development and adoption at the micro level.

Bilboko Eraztun Berdeko ekosistemek eskaintzen dituzten zerbitzuen azterketa eta erabiltzaileen pertzepzioa

[EUS] Hiriko ekosistemak garrantzi handiko gune berdeak bilakatzen ari diren honetan, geroz eta gehiago dira eremu naturalen kudeaketarako estrategiak garatzeko biodibertsitatearen eta ekosistemen zerbitzuen balioa kontuan hartu behar dela uste dutenak. Ekosistemen zerbitzuen (gizakiak ekosistematik eskuratzen dituen onurak) kudeaketa jasangarria garatzeko, zerbitzuon eskaintza eta eskaria kontuan hartzen dituzten aspektu biofisiko, sozio-kultural eta ekonomikoak ezagutzea beharrezkoa da. Ikerketa honetan, hiritarrek Bilboko Eraztun Berdeko ekosistemek eskaintzen dituzten zerbitzuen inguruan duten pertzepzioa ezagutu nahi da, jendeak eskaintzen diren zerbitzu guztiak hautematen dituen jakiteko. Horretarako, ikertutako arean ekosistemen hiru zerbitzu kartografiatu dira (aspektu biofisikoa) eta 111 pertsona inkestatu dira euren iritzia ezagutzeko (aspektu sozio-kultural eta ekonomikoa). Hala, ikusi da hiritarrek naturak ongizaterako duen garrantzia ezagutzen dutela, nahiz eta ekosistemen zerbitzuen kontzeptua ez ezagutu. Dena dela, ekosistemak egoera onean mantentzeko prest daude, bereziki garrantzitsuak iruditzen baitzaizkie erregulaziozko zerbitzuak (airearen kalitatea) eta zerbitzu kulturalak (lasaitasuna, aisia, eta naturarekin kontaktua). Beraz, emaitza hauek kontuan hartu beharko lituzkete Bilboko Eraztun Berdeko ekosistemen kudeaketaz arduratzen diren agintariek, etorkizun hurbilean zerbitzuen eskaintza eta eskariaren arteko kudeaketa orekatua garatzeko.

Skill premium effects on fertility and female labor force supply

Published as an article in: Journal of Population Economics, 2004, vol. 17, issue 1, pages 1-16.

An Estimated New-Keynesian Model with Unemployment as Excess Supply of Labor

Wage stickiness is incorporated to a New-Keynesian model with variable capital to drive endogenous unemployment uctuations de ned as the log di¤erence between aggregate labor supply and aggregate labor demand. We estimated such model using Bayesian econometric techniques and quarterly U.S. data. The second-moment statistics of the unemployment rate in the model give a good t to those observed in U.S. data. Our results also show that wage-push shocks, demand shifts and monetary policy shocks are the three major determinants of unemployment fl uctuations. Compared to an estimated New-Keynesian model without unemployment (Smets and Wouters, 2007): wage stickiness is higher, labor supply elasticity is lower, the slope of the New-Keynesian Phillips curve is flatter, and the importance of technology innovations on output variability increases.

The Sustainability of `Sustainable´ Energy Use: Historical Evidence on the Relationship between Economic Growth and Renewable Energy

20 p.

Income tax progressivity, growth, income inequality and welfare

This paper analyzes the effects of personal income tax progressivity on long-run economic growth, income inequality and social welfare. The quantitative implications of income tax progressivity increments are illustrated for the US economy under three main headings: individual effects (reduced labor supply and savings, and increased dispersion of tax rates); aggregate effects (lower GDP growth and lower income inequality); and welfare effects (lower dispersion of consumption across individuals and higher leisure levels, but also lower growth of future consumption). The social discount factor proves to be crucial for this third effect: a higher valuation of future generations' well-being requires a lower level of progressivity. Additionally, if tax revenues are used to provide a public good rather than just being discarded, a higher private valuation of such public goods will also call for a lower level of progressivity.