In short, exclusivity refers to a commodity that can't be used by others after I use it. I take a biteAppleOthers can't eat what I eat again;Competitiveness means that if I use one product, others will use one less. If I eat one apple, others will eat one less apple.Obviously, such asUrban RdStreet lights, public squares and green spaces are all non competitive and non exclusive: street lights illuminate my way home, and do not hinder my neighbor's way home;I got the benefit of the street lights illuminating the road, but it did not reduce the chance for my neighbors to get the same benefits.
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And typicalpublic goodsThe supply ofMarket Failure One of the most important reasons for.In our daily life, one of the most common and common public goods iscorridor lamp, it provides the same function for every family on the same floor.If one day the aisle light breaks down and you change a light bulb, it shines on you as well as your neighbors, but they get benefits without paying for it, thenYou comeThe most equal way is to let your neighbors also pay for it.But your neighbors may tell you that they are willing to let the aisle light continue to go dark and are not willing to pay for it. Although they do not want the aisle light to continue to go dark, they hide their true thoughts and hope that you will pay for them by taking your free ride.Of course, as a cultured person, you will not haggle with those who haggle over every ounce, and will generously pay for the broken light bulb.But what if the market price of that bulb was 50 yuan?100 yuan, or 10000 yuan?So the market tends to malfunction: if there is noExternal force actionMost of our aisle lights will go black.
