In high-dimensional data, one often seeks a few interesting low-dimensional projections that reveal important features of the data. Projection pursuit is a procedure for searching high-dimensional data for interesting low-dimensional projections via the optimization of a criterion function...

With this study we are the first to systematically compare todays two major counterparts as a source of accounting and financial data for researchers: Compustat North America by Standard & Poors and Worldscope by Thomson Financial. This investigation is conducted for U.S. and partly Canadian...