In this article, I will draw on the articles, Paying for international environmental public goods and economic incentives and wildlife conservation to discuss what is an impure public good, types of externalities. associated with impure public goods, the technology of public good provision and the types of economic incentives (positive and negative) that are created for impure public goods with different technologies of public good provision. According to Paying for International Environmental Public Goods, which is written by Rodrigo Arriagada and Charles Perrings, it mainly discusses how to prevent international environmental public goods (IEPG). There are many compensation systems within a country, which aim to prevent the production of public goods. However, there is no international authority to protect the under-provisioned public good. People can get many benefits from IEPGs, but they have no solutions to the problem of undersupply. In this article, public goods are defined as “pure” only if they are non-excludable and non-rivalrous in consumption, whereas impure public goods are either partially excluded or rivalrous. It is impossible for a state to obtain this type of public goods on its own; its supply depends on global cooperation. However, new networks have changed people's social participation and the way they exchange ideas. This raises concerns about the ethical responsibilities of individuals, organizations, countries, cooperation and alternative forms of governance of the biosphere. According to the article, “three common examples of public goods delivery technologies are “additive,” “optimal,” and “weak link” technologies. Additive technology consists of simple-sum and weighted-sum public goods. The best asset for public goods is profit ... middle of paper ...... policy recommendations. The authors concluded that the best perspective for implementing economic incentives is to value land use and habitat conversion and provide useful directions for future research. In conclusion, this article discusses international environmental public goods and expresses the problem of under-provisioning of Paying for International. Environmental public goods. Additionally, this article illustrates the problem of wildlife exploitation and conservation and presents solutions to this problem from the Economic Incentives and Wildlife Conservation article. References: Bulte, Eriwon H., G. Cornelis Van Kooten and Timothy Swanson. “Economic Incentives and Wildlife Conservation.” (2003). Print.Arriageda, Rodrigo and Charles Perrings. “Paying for international environmental public goods”. (2011). Print.