In this paper the key risk areas are divided into several elements which will be investigated one by one determine in order to find the existing risk events in each element,judge the causes of risks and evaluate them,and to the weakest links.

By comparing the difference between risk events and claim events,a distribution on claims numbers to homogeneous policyholders has been studied.

The application of risky division on the research of software risk;

The study on software risk management of the software industry is paid attention to more and more at present,classifies the risk of the software in theory,have proposed the thinking of risk management,and the methods of quantitative managing risk and sof.

The basic concept of software risk is introduced,the characteristic of software risk and the ways to distinguish software risk are analysed.

Aimed at averting hardware risks occurring in the construction and operation of the current computerized accounting information system, the paper presents a detailed introduction of some essential technical measures for protecting against natural disasters, accidents and artificial damages.

Then Monte Carlo Simulation methods applied in products investment decision under risk circumstance are studied,which include analyzing simulation object, building model,analyzing inputs and outputs.

Search-Based Limited Participation、Event Risk and Liquidity Premium;

Event Risk,Limited Participation and Revaluation of Asset Price——A Competitive Model Based on Search Theory

In this paper,the valuation of permanent American options in the presence of non-hedgeable event risk is considered.