Evaluating the effectiveness of the Spanish police force through data envelopment analysis

The aim of this paper is to evaluate the level of effectiveness of the National Police Force in Spain, attempting to show the possibilities that the Data Envelopment Analysis technique offers in this field. Furthermore, we have implemented a two-stage procedure which uses econometric methods to estimate the set of variables which will explain the performance of effective units. The results of our analysis show that there is a high level of investigative effectiveness, which decreases regarding coercive and overall effectiveness. This indicates that although there is logic in the cases solved and the culprits arrested, this cannot be extended, given the level of offences, to the number of cases solved, and to a lesser degree to those arrested for them. The units which are most effective overall are characterized by the solving of crimes against the right to sexual freedom and indemnity and by the arrest of a high percentage of those guilty of other offences.      

社会背景下青少年对沟通渠道的选择

用来支持和维系现有社会关系的在线交流越来越多地融入到人们的日常生活中。文章研究调查了与偏爱当面交流、电话通讯和在线交流相关的因素。对强调关系来源、关系亲密程度和沟通内容会影响青少年选择何种沟通渠道的背景框架进行了实证检验。     

How time influences franchise contracts: the Spanish case

This article builds a simple theoretical model for the optimal expected length of a franchise contract. The main outcome is that fixed specific investment positively impacts contract duration confirming previous theoretical conjectures. Additionally, other variables such us the price–cost margin of the franchise, the brand name or the discount factor also play a relevant role. The empirical analysis using a large sample of franchises operating in Spain confirms the main conclusions of the model. However, the connection found between investment and duration, although statistically robust, is weak from an economic point of view. This result suggests the possibility that, in general, most franchisees are not in equilibrium because of the high standardization of this contract term across franchises. In these cases, the expectation of renewal is likely to be a crucial element of adjustment.     

Genetic Polymorphisms of four X-STR Loci: DXS6797, DXS6800, HPRTB and GATA172D05 in a Peruvian population sample

The X linked short tandem repeats (STR) markers have proven to be very useful tools for paternity testing when the disputed child is female. The purpose of this study was to describe the genetic polymorphism of four X-chromosomal STR loci (DXS6797, DXS6800, HPRTB and GATA172D05) in a Peruvian population sample and evaluate their efficiency in forensic practice and paternity testing.     

Genetic data analysis of nine STRs in two Caribbean Colombian populations: César and Guajira.

POPULATION: We have analyzed the distribution of the allele frequencies and parameters of forensic interest at nine short tandem repeat (STR) loci (CSF1PO, D3S1358, D5S818, D7S820, D13S317, FGA, TH01, TPOX, and vWA) in a sample population of 165 unrelated individuals from César and Guajira, Caribbean populations of Colombia.     

Politics and the Adoption of Legislative Television: An Analysis of the U.S. House Vote on C-SPAN

The present study extends the work of Crain and Goff (1988) by examining the political determinants of the earliest decision to adopt legislative television on a permanent basis at the national level in the United States. Data on legislator and district characteristics are used to explain the 1977 vote to adopt C-SPAN coverage of proceedings in the U.S. House of Representatives. Logit regression results suggest that length of service and extremity of political views/ideologies had clear and significant effects on politicians' votes concerning the adoption of legislative television. As with Crain and Goff (1988), these measures capture some element of legislator self-interest.