The central aim of this work has been to study the influence on firms’ short-run export performance of variations in the pressure of home demand. Given the limited research resources the study has been confined to four industries: pottery, motor cycles and pedal cycles, office machinery and domestic electrical appliances. Our investigations have, if only incidentally, also thrown light upon related matters, such as the allocation of production between exports and home sales in the long run, and the role of pricing policy. We do not, however, claim to have made a comprehensive examination of these wider issues: a study of pricing policy and its relation to export performance in particular would have required a very different methodological approach, much greater research resources and, for that matter, a degree of co-operation and assistance from firms which could not be expected by private investigators.