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Laber Values, Prices of Production, and Wage-Profit Rate Frontiers of the Korean Economy
Lefteris Tsoulfidis,Dong-Min Rieu 서울대학교 경제연구소 2006 Seoul journal of economics Vol.19 No.3
This paper extends the empirical analysis of the labor theory of value using input-output data from the Korean Economy for the years 1995 and 2000. The results of the analysis suggest that the Korean economy displays similarities with a number of other economies as regards to the proximity of labor values, Sraffian prices and prices of production to actual market prices. Furthermore, our findings of the wage-profit rates frontiers for the Korean Economy for the years 1995 and 2000 preclude the case of reswitching of techniques. This result lends additional support to the labor theory of value as an analytical tool for the understanding of the laws of motion of modern economies.
The social cost of congestion games by imposing variable delays
Josep Díaz,Ioannis Giotis,Lefteris Kirousis,Ioannis Mourtos,Maria Serna 한국통신학회 2017 ICT Express Vol.3 No.4
In this study, we describe a new coordination mechanism for non-atomic congestion games that leads to a (selfish) social cost which is arbitrarily close to the non-selfish optimal. This mechanism incurs no additional cost, in contrast to tolls that typically differ from the social cost as expressed in terms of delays.
A 2-Year Psychological Autopsy Study of Completed Suicides in the Athens Greater Area, Greece
Antonios Paraschakis,Ioannis Michopoulos,Christos Christodoulou,Filippos Koutsaftis,Lefteris Lykouras,Athanassios Douzenis 대한신경정신의학회 2015 PSYCHIATRY INVESTIGATION Vol.12 No.2
ObjectiveaaTo study the characteristics of a sample of suicide victims from the Athens Greater Area using the psychological autopsy method for the first time in Greece. MethodsaaWe studied all recorded cases of completed suicide for the 2-year time period November 2007–October 2009 collecting data from the victims’ forensic records as well as from the completion of a psychological autopsy questionnaire. Resultsaa335 persons were recorded as suicide victims. We contacted relatives of 256 victims interviewing those of 248 of them (96.9%). The differences regarding sex, marital and employment status between our sample and the general population were statistically significant (p<0.001). The male/female ratio was 3:1. Comparatively more victims were divorced, separated or single and a greater proportion were pensioners or unemployed. 26.0% of the victims had history of prior attempts (64.4% once, 20.3% twice and 15.3% more times). 42.6% were taking psychiatric medication-significantly more women than men according to blood tests; 14.2% had been hospitalized in a psychiatric clinic the year prior to their death. 84.8% have deceased at the place of suicide and 15.2% died in the hospital; 80.3% died indoors and 19.7% outdoors. Men died primarily by hanging or shooting by a firearm while women preferred jumping from height instead (p<0.001). As many as 48.8% had expressed their intention to die to their relatives; 26.6% left a suicide note. ConclusionaaOur study has shown that the psychological autopsy method is applicable and widely accepted yielding results comparable to the international literature. Specific parameters associated with suicide have been studied for the first time in Greece.