This paper studies how the price movements of pork,chicken and egg respond to those of related cost factors in short terms in Chinese market.We employ a linear quantile approach not only to explore potential data hete...This paper studies how the price movements of pork,chicken and egg respond to those of related cost factors in short terms in Chinese market.We employ a linear quantile approach not only to explore potential data heteroscedasticity but also to generate confidence bands for the purpose of price stability study.We then evaluate our models by comparing the prediction intervals generated from the quantile regression models with in-sample and out-of-sample forecasts.Using monthly data from January 2000 to October 2010,we observed these findings：（i） the price changes of cost factors asymmetrically and unequally influence those of the livestock across different quantiles;（ii） the performance of our models is robust and consistent for both in-sample and out-of-sample forecasts;（iii） the confidence intervals generated from 0.05th and 0.95th quantile regression models are good methods to forecast livestock price fluctuation.展开更多
With the deepening of economic globalization,the business environment has seen profound changes.The cost of aviation fuel has grown to represent a significant portion of air transportation costs for“energy-dependent...With the deepening of economic globalization,the business environment has seen profound changes.The cost of aviation fuel has grown to represent a significant portion of air transportation costs for“energy-dependent”airlines.The cost of aviation fuel makes up a sizeable amount of Chinese airlines’cost structure and is increasingly limiting their profitability.The question of how to control the cost of aviation fuel from various perspectives has garnered widespread attention.This paper puts forward an overlooked perspective-the procurement strategy.Firstly,it describes the necessity of aviation fuel cost control,and then analyzes specific cases of aviation fuel procurement cost control.Finally,it proposes several effective suggestions from the perspective of aviation fuel procurement,aiming to improve the refined management of Chinese airlines’aviation fuel procurement.展开更多
目的探讨疾病诊断相关分组(diagnosis related group,DRG)收付费实施对房颤射频消融术费用的影响。方法采用回顾性分析与描述性分析相结合的方法,导出福建省立医院2021年1—6月(实施前)326例,2022年1—6月(实施后)363例进行分析对比。分...目的探讨疾病诊断相关分组(diagnosis related group,DRG)收付费实施对房颤射频消融术费用的影响。方法采用回顾性分析与描述性分析相结合的方法,导出福建省立医院2021年1—6月(实施前)326例,2022年1—6月(实施后)363例进行分析对比。分析DRG实施前后房颤射频消融术各种费用指标(住院天数、药品费、手术费、医务性收入、耗材费、麻醉费、检查化验费)的变化情况。采用多元线性回归分析住院总费用的影响因素,采用方差分析并发症对患者住院总费用的影响。结果DRG收付费实施后住院天数短于实施前,药品费、耗材费、手术费均低于实施前,医务性收入高于实施前,差异有统计学意义(P<0.05);DRG收付费实施前后检查化验费、麻醉费比较,差异无统计学意义(P>0.05)。耗材费、药品费是影响医保支付金额的主要因素(P<0.05);无并发症组的住院总费用为(78290.320±5020.166)元,1个并发症组的住院总费用为(84669.870±20566.278)元,2个并发症组的住院总费用为(84881.250±20369.003)元,3个并发症组的住院总费用为(93440.170±28814.175)元,患者住院总费用比较,差异有统计学意义(P<0.05),并发症越多,患者住院总费用越高。结论DRG收付费制度对优化医疗费用结构有一定作用,实施DRG能有效降低医疗费用,减少居民医疗服务支出,提高医疗服务质量,对推进我国DRG收付费的实施具有重大意义,为进一步推动完善DRG收付费改革提供理论依据,对于遏制医疗费用不合理增长、推动公立医院加强自身运营能力建设具有重要的理论与现实意义,但仍存在一些问题需要完善。展开更多
Diabetes is a chronic disease that affects over 30 million people in the United States.Of these,approximately 7.4 million use one or more formulations of insulin to manage their condition.There is a significant financ...Diabetes is a chronic disease that affects over 30 million people in the United States.Of these,approximately 7.4 million use one or more formulations of insulin to manage their condition.There is a significant financial burden on diabetic individuals,as the price of insulin keeps increasing each year.Such consistent and drastic increases in the price of insulin are due to the complexities in the insulin supply chain,pricing mechanisms particularly due to pharmacy benefit managers(PBMs),and the dominance of a few insulin manufacturers in the market.This policy analysis has been undertaken independently and is based on information from peer-reviewed journals,government organizations and agencies,and credible news sources.Politicians and various stakeholders in the supply chain have made several policy recommendations on the pricing of insulin.From the data and information collected,we suggest basing a patient's co-payment on the net price instead of the list price of insulin,and that there should be real-time transparency in the negotiations between PBMs and pharmaceutical companies on rebates.展开更多
基金supported by the Key Project of National Key Technology R&D Program of China(2009BADA9B01)
文摘This paper studies how the price movements of pork,chicken and egg respond to those of related cost factors in short terms in Chinese market.We employ a linear quantile approach not only to explore potential data heteroscedasticity but also to generate confidence bands for the purpose of price stability study.We then evaluate our models by comparing the prediction intervals generated from the quantile regression models with in-sample and out-of-sample forecasts.Using monthly data from January 2000 to October 2010,we observed these findings：（i） the price changes of cost factors asymmetrically and unequally influence those of the livestock across different quantiles;（ii） the performance of our models is robust and consistent for both in-sample and out-of-sample forecasts;（iii） the confidence intervals generated from 0.05th and 0.95th quantile regression models are good methods to forecast livestock price fluctuation.
文摘With the deepening of economic globalization,the business environment has seen profound changes.The cost of aviation fuel has grown to represent a significant portion of air transportation costs for“energy-dependent”airlines.The cost of aviation fuel makes up a sizeable amount of Chinese airlines’cost structure and is increasingly limiting their profitability.The question of how to control the cost of aviation fuel from various perspectives has garnered widespread attention.This paper puts forward an overlooked perspective-the procurement strategy.Firstly,it describes the necessity of aviation fuel cost control,and then analyzes specific cases of aviation fuel procurement cost control.Finally,it proposes several effective suggestions from the perspective of aviation fuel procurement,aiming to improve the refined management of Chinese airlines’aviation fuel procurement.
文摘目的探讨疾病诊断相关分组(diagnosis related group,DRG)收付费实施对房颤射频消融术费用的影响。方法采用回顾性分析与描述性分析相结合的方法,导出福建省立医院2021年1—6月(实施前)326例,2022年1—6月(实施后)363例进行分析对比。分析DRG实施前后房颤射频消融术各种费用指标(住院天数、药品费、手术费、医务性收入、耗材费、麻醉费、检查化验费)的变化情况。采用多元线性回归分析住院总费用的影响因素,采用方差分析并发症对患者住院总费用的影响。结果DRG收付费实施后住院天数短于实施前,药品费、耗材费、手术费均低于实施前,医务性收入高于实施前,差异有统计学意义(P<0.05);DRG收付费实施前后检查化验费、麻醉费比较,差异无统计学意义(P>0.05)。耗材费、药品费是影响医保支付金额的主要因素(P<0.05);无并发症组的住院总费用为(78290.320±5020.166)元,1个并发症组的住院总费用为(84669.870±20566.278)元,2个并发症组的住院总费用为(84881.250±20369.003)元,3个并发症组的住院总费用为(93440.170±28814.175)元,患者住院总费用比较,差异有统计学意义(P<0.05),并发症越多,患者住院总费用越高。结论DRG收付费制度对优化医疗费用结构有一定作用,实施DRG能有效降低医疗费用,减少居民医疗服务支出,提高医疗服务质量,对推进我国DRG收付费的实施具有重大意义,为进一步推动完善DRG收付费改革提供理论依据,对于遏制医疗费用不合理增长、推动公立医院加强自身运营能力建设具有重要的理论与现实意义,但仍存在一些问题需要完善。
文摘Diabetes is a chronic disease that affects over 30 million people in the United States.Of these,approximately 7.4 million use one or more formulations of insulin to manage their condition.There is a significant financial burden on diabetic individuals,as the price of insulin keeps increasing each year.Such consistent and drastic increases in the price of insulin are due to the complexities in the insulin supply chain,pricing mechanisms particularly due to pharmacy benefit managers(PBMs),and the dominance of a few insulin manufacturers in the market.This policy analysis has been undertaken independently and is based on information from peer-reviewed journals,government organizations and agencies,and credible news sources.Politicians and various stakeholders in the supply chain have made several policy recommendations on the pricing of insulin.From the data and information collected,we suggest basing a patient's co-payment on the net price instead of the list price of insulin,and that there should be real-time transparency in the negotiations between PBMs and pharmaceutical companies on rebates.
