SFS has been measuring business investment confidence since the beginning of 2007 through a model that combines several key indicators: the probability of planned investments in new equipment and facilities over the next 12 months, revenue and earnings trends in the past 12 months, expected revenue and earnings trends over the next 12 months and expectations of significant economic growth within the next 12 months. The data are based on interviews with 8,000 companies in the major economies under review, including Germany, France, Great Britain, Spain, the United States, China, Poland and Turkey.