The highly prized ability to make financial plans with some certainty about the futurecomes fromthe core fields of economics. In recent years the availability of more data, analytical tools of greater precision, and studies of business decisions have increased demand for information about economic forecasting. Volumes 2A and 2B,which follows Nobel laureate Clive Granger's Volume 1 (2006), concentrate on two major subjects. Volume 2Acovers innovations in methodologies, specifically macroforecasting and forecasting financial variables. Volume 2Binvestigates commercial applications,with sections on forecasters' objectives and methodologies. Experts provide surveys of a large range of literaturescattered acrossappliedand theoretical statistics journals as well aseconometrics and empirical economics journals. Volumes 2A and 2Bprovide a unique compilation of chapters giving a coherent overview of forecasting theory and applications in one place and with up-to-date accounts of all major conceptual issues.