The main purpose of the present study is to investigate the relation between inflation rate and unemployment rate in contemporary democratic states, using Spearman's correlation coefficient. We apply this method i...The main purpose of the present study is to investigate the relation between inflation rate and unemployment rate in contemporary democratic states, using Spearman's correlation coefficient. We apply this method in Albania during the period from January 2005 to December 2014. Some results of the study include: (1) The Central Limit Theorem (CLT) is not applicable for the quarterly inflation rate as well as for quarterly unemployment rate in Albania during the period from January 2005 to December 2014 at the confidence level of 99.99%. The official data for inflation and unemployment contradict the CLT at a very high confidence level of 99.99%; (2) The inflation process in Albania during the period from January 2005 to December 2014 is an unfair game at the confidence level of 99.2%; (3) The unemployment process in Albania during the period from January 2005 to December 2014 is an unfair game at the confidence level of 99.99%; (4) The inflation and unemployment in Albania during the period from January 2005 to December 2014 are statistically dependent at the 96% confidence level; (5) Spearman's correlation coefficient = 0.387 indicates a weak positive correlation between inflation and unemployment in Albania during the specified period; and (6) The official data for inflation and unemployment in Albania during the period from January 2005 to December 2014 are consistent with Friedman's hypothesis.展开更多
This paper introduces a generalized multivariate Gumbel(GMG) distribution using a survival copula.Various dependence properties of the GMG distribution and some analytical properties of the generators of the GMG distr...This paper introduces a generalized multivariate Gumbel(GMG) distribution using a survival copula.Various dependence properties of the GMG distribution and some analytical properties of the generators of the GMG distribution are studied.Furthermore,the authors also investigate the dependence behavior of the residual lifetime vector of the GMG distribution.As an illustration,the GMG distribution is applied to fit a real data set.展开更多
文摘The main purpose of the present study is to investigate the relation between inflation rate and unemployment rate in contemporary democratic states, using Spearman's correlation coefficient. We apply this method in Albania during the period from January 2005 to December 2014. Some results of the study include: (1) The Central Limit Theorem (CLT) is not applicable for the quarterly inflation rate as well as for quarterly unemployment rate in Albania during the period from January 2005 to December 2014 at the confidence level of 99.99%. The official data for inflation and unemployment contradict the CLT at a very high confidence level of 99.99%; (2) The inflation process in Albania during the period from January 2005 to December 2014 is an unfair game at the confidence level of 99.2%; (3) The unemployment process in Albania during the period from January 2005 to December 2014 is an unfair game at the confidence level of 99.99%; (4) The inflation and unemployment in Albania during the period from January 2005 to December 2014 are statistically dependent at the 96% confidence level; (5) Spearman's correlation coefficient = 0.387 indicates a weak positive correlation between inflation and unemployment in Albania during the specified period; and (6) The official data for inflation and unemployment in Albania during the period from January 2005 to December 2014 are consistent with Friedman's hypothesis.
基金supported by STU Scientific Research Foundation for Talents under Grant No.NTF15002STU Natural Science Foundation for Young Scientists under Grant No.YR15002+1 种基金Guangdong Natural Science Foundation under Grant No.2016A030310076Scientific Research Funds of Department of Education of Guangdong Province under Grant No.2015KQNCX043
文摘This paper introduces a generalized multivariate Gumbel(GMG) distribution using a survival copula.Various dependence properties of the GMG distribution and some analytical properties of the generators of the GMG distribution are studied.Furthermore,the authors also investigate the dependence behavior of the residual lifetime vector of the GMG distribution.As an illustration,the GMG distribution is applied to fit a real data set.