11.1. Introduction. The present chapter describes the benefits and challenges of integrating trade and business statistics in data compilation and data dissemination. Possible approaches to linking customs records to the national trade and business register are described and illustrated with examples. This chapter builds on the discussion of data sources and data compilation in the previous chapters. Although chapter XI is related to chapter VII, there are differences between the two, as chapter VII deals with the integration of data from different sources for the compilation of IMTS, while this chapter aims at generating additional and better information, as well as efficiency gains in the compilation of economic statistics.