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import countries. The proportion that the two parties undertake depends on the shape of the supply curve and demand curve. If the absolute slope of demand curve is larger than the slope of supply curve, the endusers in import countries will undertake more proportion。 while the total ine is P2E2Q2O in the condition that they take active steps to prevent accidents, occupation disease. PlElQlO or P2E2Q2O, which indicates more ine, it depends on the product elasticity of demand(Ed)1. If Ed 1, that is to say, the price is up 1%, the percent of demand will be less than 1%. In such condition, the upward price will lead the mare total ine. If we take active steps to prevent accidents, occupation disease, whether or not can influence the employment in export line? The shape of supply curve depends on the productive cost. In Fig. 2, if the big countries do not take active steps of increasing safetyinvest, the total cost is AElQlO, If the big countries take active steps of increasing safety invest, the total cost BE2Q2O. Assume that the number of employees is proportional to the total cost of export goods. Then the increase of total cost caused by taking precautions to prevent and deal with accidents and occupation disease in big countries is good to their employment. III. ENLIGHTENMENTS TO DEVELOPING COUNTRY In the aspect of green safety barriers, we should be against some countries’ double standards of protecting domestic backward industry while as well as prevent intervening other country’s internal politics by the excuse of safety protection. As for the need of domestic public, we will perform the practical safety standard to the internal and external enterprises. We must confess that it is a challenge as well as an opportunity. Learning from international experience [8], we should build and improve the supervision system of safety produce\law and regulation, issue and perform the safety producing plan, build the powerful safety producing teleology。 health standard integration, labor standard in international trade, increase the liability and necessity importance of maintaining safety produce, entering into the cycle of international trade. We will strengthen the stress of Occupational Safety amp。 turn the safety produce into the way of legal system. IV. CONCLUSION 1) The import demand curve that small countries faced is a level. If the small countries takes active steps of increasing safety invest, then the total cost including productive cost, the cost of accidents, and preventive cost of occupation disease, the upward total cost will force the producers in small countries to undertake the total loss. While the import demand cure that big countries faced is a level of rightbottom. If the big countries take steps to prevent or manage the accidents, occupation disease which will lead the cost upward, the loss will be shared by the endusers in import countries. 2) As for the small countries in international trade, if they increase the safety invest, the total cost will be up, generally speaking, the small countries are the receivers of the international price, they can not make up for the increase of cost on the upward price, so it can influence their petition of export goods. While the big countries take steps to prevent or manage the accidents, occupation disease which will lead the cost upward, the loss will be shared by the endusers in import countries. It is not influential to its employment, sometimes it is favorable. So it has little or no influence to the petition of the export product. 3) If Ed 1 of the export product in big countries, the price will be up, the total ine will increase in such case. Therefore, on the condition that they take steps to raise safety invest and the preventive expense, the total ine will increase although the cost and price will be up. So it is positive to raise safety invest. 4) Developed countries have some parative advantages such as technology, fund and talents。 Health Standard and reach the international standard step by step. 6) From the above analysis, we can see that the developing countries ought to start with their own economic and political benefit, be against strongly the impractical raising the labor standard, hence, they should be against putting the labor standard into the multinational games of WTO. REFERENCES [1] Tiemin Liu, “WTO and China safety produce”, Forestry Labor Safety, pp. 29, Nov. 20xx. [2] Muzhu Shen, “Consider on International Trade and Country Environment safety Legislate”, International Trade, pp. 8992, July 20xx. [3] Yun Luo and Xiaoyun Fan, Safety economy. Beijing: Chemical Industry Press, Apr. 20xx [4] Yongding Yu, Yuyan Zhang, and Bingwen Zheng. West economy. Beijing: Economy Science Press, Apr. 20xx. [5] Jianming Gao, Lijun Wei, and Zongzhi Wu, “Management of Work Safety in Japan and Its Enlightenment to China”,Journal of China Safety Science, , Mar. 20xx. [6] Zhengquan Xu, Xuefeng Song, and Minli Li. “Thoughts and Empirical esearch Frame on the Inherent Safety Management Theory”, Journal of China Safety Science, pp. 7982, Dec. 20xx. [7] Haibin Liu, Guangrong Li, and Hui Huang, “Study on Characteristics of Coal Mine Intrinsic Safety and Strategies of Management”, Journal of China Safety Science, pp. 67 72, Apr. 20xx.