Hong Kong SAR ranked as the most competitive economy according to the 2017 IMD World Competitiveness Ranking, followed by Switzerland and Singapore. The United States ranked fourth. The ranking evaluates the competitiveness of 63 economies based on 333 criteria grouped into four factors - economic performance, government efficiency, business efficiency, and infrastructure. It shows the competitiveness scores and rankings for 2017 alongside the 2016 rankings in parentheses.