This is often accomplished using so

This is often accomplished using sophisticated quantitative
methods; just about everything in the statisticians’, econometricians’,
and game theorists’ tool kit has been adapted to serve the needs of policy
analysis (for a comprehensive introduction to the range of quantitative
policy analysis methods, see Gupta 2001). The increasing sophistication of
methods, however, has not yet addressed a fundamental conceptual problem
the rationalist project has struggled with since its modern inception.