Carrara marble Carrara marble Carrara marble is a type of white or blue-grey marble of high quality, popular for use in sculpture and building decor. It is quarried in the city of Carrara located in the province of Massa and Carrara in the Lunigiana, the northernmost tip of modern-day Tuscany, Italy. Carrara marble has been used since the time of Ancient Rome. In the 17th and 18th centuries, the marble quarries were monitored by the Cybo and Malaspina families who ruled over Massa and Carrara. The family created the "Office of Marble" in 1564 to regulate the marble mining industry. The city
Economic region of production Economic region of production In economics, the economic region of production is an offshoot of the theory of production function with two variables. It is a cost-oriented theory which defines the region in which the optimal factor combination will lie. It serves as a map of the region of optimal production. Production lines Q1 and Q2 are the isoquants, depicting the technically efficient factor combinations at different levels of production. The ridge lines A and B demarcate the technically efficient region of production. Above the line OA and below the line OB slope of the isoquants is positive which means