The IUI micro-to-macro modeling project began almost ten years ago as a joint research venture between IBM Sweden and the University of Uppsala.
At the outset, the major research activity took place at the Federation of Swedish lndustries. In 1977 the project was transferred to IUI. The first technical phase of the project was concluded with the joint IUI-IBM conference on microsimulation modeling in Stockholm 1977. The conference served as the basis for two IUI reports (1978 and 1980).
Since then project resources have mainly been devoted to building a micro-to-macro database for the model and retooling it for empirical applications. There is essentially no end to such work. Since the current model design is significantly different from what has been described in earlier publications we have decided to publish a set of intermediate reports on the current state of modeling design and database work. This is the first publication in that series presenting the ideas of micro-to-macro theory and the overall structure of the model. Later publications will cover technical aspects of the modeling technique, database design, model related econometric work and applications.
