Abstract: A computer system, method and tangible storage medium are provided to estimate a company's revenue pertaining to a given country within a specific geographic region. Region-specific revenue data is received that indicates the company's revenue pertaining to the geographic region. The company's home country is determined and country-specific export data is received that indicates a macroeconomic export volume or export value from the company's home country to the given country within the geographic region. Country-specific revenue data is calculated estimating the company's revenue pertaining to the given country within the geographic region based on the region-specific revenue data and the country-specific export data.

Abstract: A computer-implemented method, a computer-readable medium and a data processing apparatus are provided for calculating an index of a financial instrument being weighted with optimized weights. The financial instrument comprises a plurality of constituents. Data reflecting characteristics of the constituents is collected. Based on the collected data, continuous returns are calculated for each of the plurality of constituents. The continuous returns are used for determining a covariance matrix. The weights of all the constituents are optimized by using the covariance matrix. The constituents of the financial instrument are weighted with their respective optimized weights. An index of the financial instrument having its constituents weighted with the optimized weights is determined. The weights of the constituents are kept constant for a predetermined period in time before updated optimized weights are calculated.