Tuscany along the coastal strip (Livorno and Pisa areas), where there are also important chemical industries. Also of note are the marble (Carrara area) and paper industries (Lucca area). Tuscany is a traditionally popular destination in Italy, and the main tourist destinations by number of tourist arrivals are Florence, Pisa, Montecatini Terme, Castiglione della Pescaia and Grosseto. Additionally, the Chianti region, Versilia and Val d'Orcia are also internationally renowned and particularly popular spots among travellers. As far as seaside tourism is concerned, which represents 40% of tourist arrivals in the region, Castiglione della Pescaia's sea has been repeatedly nominated as Italy's
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