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Petroleum exploration in Brazil is performed throughout a bidding process coordinated by the National Petroleum Agency (NPA), where the exploration and production (E&P) firms need to evaluate concessions performing financial and economic analyses routinely. Since oil is a public resource with...
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regress between contestability, duopoly, monopolistic competition and game theory. This paper proposes an oligopoly model with … concentration (using HHI and CRn indices) measured in 4 carriers and found 0.315>0.2 in turnover in 2002, indicating oligopoly. The …
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