The demise of Welsh heavy industry spawned a strong movement towards the attraction of Hi-Tec industry into Wales. Investment and factories set up by Japanese, Korean, and American companies make Welsh Hi-Tec one of the most efficient in Europe. The South Wales Valleys have experienced a large drop in unemployment as a result of the new centres of training where youths are specifically trained for specific job opportunities. These improvements in industry have in turn led to an renewed optimism within the communities living the South Wales Valleys.