Caserta and Salerno. Over half of the population is resident in the province of Naples, where there is a population density of 2,626 inhabitants per km2. Within the province, the highest density can be found along the coast, where it reaches 13,000 inhabitants per km2 in the city of Portici. The region, which was characterised until recently by an acute economic contrast between internal and coastal areas, has shown an improvement in the last decade thanks to the development of the provinces of Benevento and Avellino. At the same time, the provinces of Naples, Caserta and in part Salerno, have developed a variety of activities connected to advanced types of services. Immigration and ethnicity Unlike central and northern Italy, in the last decade the region of Campania has not attracted large numbers of immigrants. The Italian national institute of statistics ISTAT estimated in January 2007 that 98,052 foreign-born immigrants live in Campania, equal to 1.7% of the total regional population. Part of the reason for this is in recent times, there have been more employment opportunities in northern regions than in the Southern Italian regions. Government and politics The Politics of Campania, takes place in a framework of a presidential representative democracy, whereby the President of Regional Government is the head of government, and of a pluriform multi-party system. Executive power is exercised by the Regional Government. Legislative power is vested in both the government and the Regional Council. The Regional Council of Campania (Consiglio Regionale della Campania) is composed of 60 members, of which 47 are elected in provincial constituencies with proportional representation, 12 from the so-called "regional list" of the elected president and the last one is for the candidate for president who comes second, who usually becomes the leader of the opposition in the council. If a coalition wins more than 55% of the vote, only 6 candidates from the "regional list" will be elected and the number of those elected in provincial constituencies will be 53. Administrative divisions Campania is divided into four provinces and one metropolitan city: Culture Cuisine Campanian cuisine varies within the region. While Neapolitan dishes centre on seafood, Casertan and Aversan ones rely more on fresh vegetables and cheeses. The cuisine from Sorrento combines the culinary traditions from both Naples and Salerno. Pizza was conceived in Naples. Spaghetti is also a well-known dish from southern Italy and Campania. Campania produces wines including