There exist many risks for the large water-need projects and new water-use projects, while the transaction of water rights option can evade some risks in the transaction of water rights so as to keep the projects developing successfully.

Application of option transactions to electricity markets;

In this article,the author points out,through analyzing the legal characteristics of the subject matter in option transaction,that option—the subject matter of a contract in option transaction—is the third right pattern in law as a transaction subject.

Analysis and application on option trade mode of electricity market;

The present paper thinks the most important thing is to cultivate actively subject of futures market,to develop option trade,to strengthen legal construction of future trade and efficient and standa.

This paper describes the basic characters of the commodity options trading on futurecontracts，and discusses the options value evaluation and the trading program.

According to the principle of equal gain of loss to both sides of purchasing and selling in options trading, a natural price of option is easily obtained, which gives a convenient calculating reference for operators.

We focus on deriving how the possibility of such option trading between two independent retailers affects each retailer s optimal order and optimal profit.