The Czech Republic business environment is one of the most investment friendly to emerge from post-Communist central and eastern Europe. Its developed, high-income economy has seen privatization across a broad spectrum of sectors, including banks and telecommunications. Growth has been fueled by increased domestic demand, as well as exports to other nations of the European Union – particularly to neighbors Germany, Austria, Poland and Slovakia. Principal industries are heavy and general machine-building, iron and steel production, metalworking, chemical production, electronics, auto manufacturing, armaments, textiles, brewing, pharmaceuticals, glass, china and ceramics. Its main agricultural products are sugar beets, fodder roots, potatoes, wheat, and hops. The Czech Republic also earns a substantial amount of income from tourism. The historic capital, Prague, is one of the most visited cities in Europe. Some of the challenges facing Czech Republic business ventures include corruption (especially in public procurement) and the demographic dilemma of a rapidly aging population (which includes funding shortfalls in the pension and health care system).