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Larger context for LACK in Corpus USbrown_UKbncw/US_brown.txt

  Part 1, below describes this abstract model by spelling out its assumptions.   Part 2, discusses the operation of the model and derives some significant conclusions.   Part 3, discusses the empirical relevance and policy implications of the conclusions.   Part 4, is a brief summary.   The Mathematical Appendix presents the rigorous argument, but is best read after Part 1, in order that the assumptions underlying the equations may be explicit.
1, THE ASSUMPTIONS OF THE MODEL

A.   THE INDUSTRY
The industry with which this model is concerned is a basic industry, producing a substantial share of gross national product.   lack >   Price competition is lack ing.  
  For the purposes of setting the product price, the industry behaves as a single entity.   In wage negotiations, the industry bargains as a unit with a single union.
B.   THE DEMAND FOR THE INDUSTRY'S PRODUCT
We are concerned with aggregate demand for the industry's product.   The manner in which this is shared among firms is taken as given.   In any given time period, the aggregate demand for the industry's product is determined by two things the price charged by the industry, and the level of GNP.