The fact of existing outside the perceiving subject. This economic phenomenon can be categorized as positive or negative when, in the price of the good placed on the market, the social gains and losses resulting from its production or consumption, respectively, are not included. Externality means a market failure, in the sense that the product put on the market does not have a price that contains all of the gains or losses resulting from its production.
First commitment period
First commitment period
Refers to the 2008-2012 period under the Kyoto Protocol.