Počet záznamů: 1  

Exponential and power laws in public procurement markets

  1. 1. 0381829 - UTIA-B 2013 RIV FR eng J - Článek v odborném periodiku
    Krištoufek, Ladislav - Skuhrovec, J.
    Exponential and power laws in public procurement markets.
    Europhysics Letters. Roč. 99, č. 2 (2012), 28005-1-28005-6. ISSN 0295-5075
    Grant CEP: GA ČR GA402/09/0965
    Grant ostatní:GA UK(CZ) 118310; SVV(CZ) 265 504; GA TA ČR(CZ) TD010133
    Institucionální podpora: RVO:67985556
    Klíčová slova: Public procurement * Scaling * Power law
    Kód oboru RIV: AH - Ekonomie
    Impakt faktor: 2.260, rok: 2012
    http://library.utia.cas.cz/separaty/2012/E/kristoufek-exponential and power laws in public procurement markets.pdf

    We analyze for the first time a unique public procurement database, which includes information about a number of bidders for a contract, a final price, an identification of a winner and an identification of a contracting authority for each of more than 40000 public procurements in the Czech Republic between 2006 and 2011, focusing on the distributional properties of the variables of interest. We uncover several scaling laws —the exponential law for the number of bidders, and the power laws for the total revenues and total spendings of the participating companies, which even follows Zipf’s law for the 100 most spending institutions. We propose an analogy between extensive and non-extensive systems in physics and the public procurement market situations. Through an entropy maximization, such analogy yields some interesting results and policy implications with respect to the Maxwell-Boltzmann and Pareto distributions in the analyzed quantities.
    Trvalý link: http://hdl.handle.net/11104/0212209