Apiano manufacturer wants to keep track of all the pianos it makes individually. eachpiano has an identifying serial number and a manufacturing completion date. eachinstrument represents exactly one piano model, all of which have an identificationnumber and a name. in addition, the company wants to maintain information about thedesigner of the model. over time, the company often manufactures thousands of pianosof a certain model, and the model design is specified before any single piano exists

The interaction of individual choices because a type of fish is on the verge of extinction, the government imposes rules that prohibit fishing in the publicly owned spawning grounds. at first owners of fshing bouts complain about this restriction on where they can fish, but soon they notice that the number of adult fish swimming outside the protected area is much higher than it was before. with the restriction, each fishing boat ends up catching more fish than it did before the r which of the following principles of economic interaction best describes this scenario? o there is a tradeoff between equality and efficiency o markets usually lead to efficiency. o when markets do not achieve efficiency,government intervention can improve overall welfare o markets allocate goodseffectively