Demand and supply oriented input-output models: a linkage analysis for Portugal.

Doutoramento em Economia.

The dissertation addresses several issues related to the input-output framework. Emphasis is given to both demand and supply sides of the input-outpyt model. The linkage framework and consequently the determination of the key sectors of the structure of the economy is the main subject of Chapter 2. The use of the supply side approach is introduced, and extensions of the linkage model to employment and income considerations are made. different versions of the traditional linkage indicators are also proposed. Chapters 3 and 4 consist of an empirical analysis of the Portuguese economy at two different aggregation levels, usingbthe framework proposed in Chapter 2. Linkages is also made to the balanced-unbalanced growth discussion. Chapter 5 presents a new set of indicators obtained from the manipulation of the complete input-output model. Finally, Chapter 6, presents the overall conclusions.