On External Formation Mechanism of Credit Risk Guarantees in Financial Transaction;

In the economic transitional period, the problem in financial transaction between banks and enterprises is a distorting credit relationship.

In the economic transitional period, the problem in the financial transaction between bank and enterprise is the distorting of credit relationship.

Analysis of building energy efficiency service markets based on transaction costs;

Analysis on Efficiency Boundary of Virtual Logistics Enterprises Based on Transaction Cost Theory;

Portfolio investment model regardless of transaction cost;

Establishment of some portfolio models including transaction costs;

A generalization of Black-Scholes model with parameter and transaction costs;

The optimal strategy of security investment with transaction costs;

The Development Reseach of Industry Clusters Based on Transaction expense;

Research into agricultural product transaction efficiency from the transaction expense angle;

Production and development of the technical alliance based on the transaction expense;

The article puts forward resolving the difficult problem of transfer of rural surplus labourf in china,we should lower the trade expenses,and build up the unify labor market between the city and country.

There were mainly 4 kinds of trade expenses at the initial development stage of Chinese private enterprises,such as the trade expenses between enterprises and governments,regulation expenses,the trade expenses inside enterprises,and the constant expenses of enterprises.

The paper analyses the necessity of multinational mergers and acquisitions and their disadvantages theoretically according to the modern enterprise theory,the trade expenses,the assets for a special use,the agent and so on.