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The specificity of construction as an economic activity and of the construction product (goods and services) determine the existence of a complex vertical chain of links, involving different actors, which they perform simultaneously the function of the buyer of the product from a previous participant and vendor product to the next participant. In practice, this means that in every unit of the vertical chain construction firm as a buyer of resources and services can be monopsony or oligopsony, on the other hand as the seller of the created product may be in the role of a monopoly or oligopoly on the market. The aim of the study is the analysis the model of a bilateral monopoly on the resource and product market, the conditions of equilibrium and the behavior of the construction firm at the entrance and the exit, taking into account the specificities of different segments of the construction market.
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It is very difficult to study phenomena in housing markets using conventional so-called neoclassical economics. The core problem stems from the highly unrealistic assumptions of neoclassical economics, such as homogeneous products, equilibrium markets, ceteris paribus clauses, deterministic and linear systems, rationality of economic agents, and the utility maximization principle. New Keynesian economics appears to be a more fruitful approach to housing markets since it presumes that products are differentiated, markets are in disequilibrium state and there exists imperfect competition in a marketplace. Furthermore, new Keynesian economics utilizes the concept of bounded rationality, which is a more realistic description of the actual behavior of economic agents than the theoretical notion of rationality in neoclassical economics.
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