Search results for "Inverted u"
showing 4 items of 4 documents
Is there an environmental Kuznets curve for Spain? Fresh evidence from old data
2012
Abstract The information content of the environmental Kuznets curve (EKC) is subject to change over time and all the empirical modeling work that does not take into account the possible variations and instabilities may fail to explain the variations in the per-capita CO2 and per-capita income relationship. In this paper we consider the possibility that a linear cointegrated regression model with multiple structural changes would provide a better empirical description of the Spanish EKC during the period 1857–2007. Our methodology is based on instability tests recently proposed in Kejriwal and Perron (2008, 2010) as well as on cointegration tests developed in Arai and Kurozumi (2007) and Kej…
Learning to be a psychostimulants addict with self-regulation therapy
2018
This article presents the results of a single-case experiment of alternative treatments in which a participant applied the Self-Regulation Therapy (SRT) to reproduce the effects of a stimulant drug, methylphenidate, and a sedative, alcohol. The SRT is a learning procedure based on classic conditioning and suggestion that reproduces the effect of drugs by remembering the effects they have. The participant reproduced the effects of both drugs during ten sessions held on 5 consecutive days. To record effects, adjective scales were used that measured Drug effect, High, Rush, Energy, Tension and the General Factor of Personality (GFP). The results indicated that the participant was capable of in…
Competition and innovation with selective exit: an inverted-U shape relationship?
2017
This paper extends the approach of the inverted-U relationship between competition and innovation at the industry level introduced by Aghion and coauthors. We use data of Spanish manufacturing firms from the Survey of Business Strategies (ESEE) spanning 1990–2006, as well as external information on patents from the European Patent Office and US Patent Office. Instead of an inverted-U shape, we obtain an unambiguous positive relationship between competition and patents. To explain this positive relationship, we modify their theoretical model to introduce the possibility of inefficient firms facing the threat of exit when competition intensifies. The modified model may explain both a positive…
Trade Openness and the Skill Premium An Inverted - UU Relation?
2016
Relying on linked employer–employee data from the German manufacturing sector in 1996–2010, I study the relation between the share of exporting establishments and the skill premium within narrowly defined industries. I document that the skill premium tends to be higher in industries with a larger share of exporting establishments. However, once unobserved industry heterogeneity is taken into account, the empirical evidence suggests an inverted-‘U’ relation between the share of exporting establishments and the skill premium.