Drawdown analysis for the renewal insurance risk process

In this paper, we study some drawdown-related quantities in the context of the renewal insurance risk process with general interarrival times and phase-type distributed jump sizes. We make use of some recent results on the two-sided exit problem for the spectrally negative Markov additive process and a fluid flow analogy between certain queues and risk processes to solve for the two-sided exit problem of the renewal insurance risk process. The two-sided exit quantities are later shown to be central to the analysis of drawdown quantities including the drawdown time, the drawdown size, the running maximum (minimum) at the drawdown time, the last running maximum time prior to drawdown, the number of jumps before drawdown and the number of excursions from running maximum before drawdown. Finally, we consider another application of our methodology for the study of the expected discounted dividend payments until ruin.     

Exponential inequalities for ruin probabilities in the Cox case

Abstract

We consider an insurance model where the underlying point process is a Cox process. Using a martingale approach we obtain extensions of the classical Lundberg inequality.     

Asymptotic results for the risk process based on marked point processes

Abstract

In this paper asymptotic properties for the risk process will be studied when the number of risk units tends to infinity. The paper extends asymptotic properties for the classical risk process to more general processes. In the classical risk process the claim amounts are assumed independent and identically distributed, and the claim number process is a homogeneous Poisson process.

The key tool is point process theory with associated martingale theory. The results are illustrated by examples.     

医疗机构课税制度改革的几个问题

我国自2000年开始实施医疗机构分类管理制度以来,分别适用于营利性医疗机构与非营利性医疗机构的课税规则也随之相应形成,造成两者差异巨大的税收负担。差异性的税负也成为进一步加剧两者不平等的市场竞争地位的重要因素,阻碍营利性医疗机构的发展。本文从分析现行医疗机构课税制度的现状入手,分析医疗机构承担各个税种纳税义务的主体资格,并以此为基础,对完善医疗机构课税制度提出若干建议。     

农业科研单位专项资金管理的若干思考

农业科技的快速发展、不断创新,使得财政对农业科研单位的专项支持力度越来越大,专项资金规模快速增长.在专项资金的申报、使用、考评过程中,出现了一系列问题急需解决,本文对专项资金管理中出现的新情况新问题进行了剖析,并提出了相应的管理对策及措施.     

完善我国税款滞纳金制度的几点建议

本文首先介绍了我国对税款滞纳金的认知,指出了当前我国税款滞纳金制度存在的几个问题,进而对完善我国税款滞纳金制度提出了立法建议,并为修订《中华人民共和国税收征收管理法》(以下简称《税收征管法》)第三十二条提出了具体的立法方案。     

支持新能源产业发展的税收政策探讨

近年来我国新能源产业得到了迅猛发展,但产业发展与市场培育极不均衡,核心技术较为缺乏。现有的税收扶持政策过于零散,政策力度和系统配套不够,协调配合作用难以发挥,没有针对新能源产业发展实际,形成相对独立的税收体系。据此,税收政策应从生产和消费两大环节同时入手,并以正向激励政策和逆向限制政策鼓励新能源的实际利用,支持新能源产业发展。     

寿险公司理赔经理业绩评价模型研究

如何对理赔经理的业绩进行客观的评价目前越来越引起各寿险公司的关注,本文针对寿险公司理赔经理业绩评价运用客户关系图建立相应的KPI评价指标体系,并应用层次分析法确定各指标的权重,尝试将360度业绩评价法与模糊综合评价法相结合构建360度模糊综合评价模型。该模型有利于寿险公司更加客观地对理赔经理进行业绩评价。     

A Note on Option Pricing for the Constant Elasticity of Variance Model

We study the arbitrage free optionpricing problem for the constant elasticity of variance (CEV) model. To treatthestochastic aspect of the CEV model, we direct attention to the relationship between the CEV modeland squared Bessel processes. Then we show the existence of a unique equivalentmartingale measure and derive the Cox's arbitrage free option pricing formulathrough the properties of squared Bessel processes. Finally we show that the CEVmodel admits arbitrage opportunities when it is conditioned to be strictlypositive.     

A core-theoretic solution for the design of cooperative agreements on transfrontier pollution

For a simple economic model of transfrontier pollution, widely used in theoretical studies of international treaties bearing on joint abatement, we offer in this paper a scheme for sharing national abatement costs through international financial transfers that is inspired by a classical solution concept from the theory of cooperative games—namely, the core of a game. The scheme has the following properties: total damage and abatement costs in all countries are minimized (optimality property), and no coalition or subset of countries can achieve lower total costs for its members by taking another course of action in terms of emissions or transfers, under some reasonable assumption about the reactions of those not in the coalition (core property). In the concluding section economic interpretations of the scheme are proposed, including its connection with the free-riding problem.