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Guillermo Peña and Fernando Sanz-Gracia |
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''Zipf's exponent and Zipf's law in the BRICS: a rolling sample regressions approach'' |
( 2021, Vol. 41 No.4 ) |
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Using urban data from the last available census of the five BRICS countries we have tested, by means of a rolling sample regressions approach, whether, as Eeckhout (2004) proposed, the Pareto exponent in a standard Zipf equation is decreasing as more cities are added to the sample. The results are very conclusive: Eeckhout's hypothesis is satisfied for Brazil, Russia and South Africa, but for India and China there are non-negligible parts of the distribution where it is not fulfilled. We also test the fulfilment of Zipf's law: it holds in the upper tail of the five countries (except South Africa) but for the rest of the distribution the predominant outcome is rejection. |
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Keywords: Zipf exponent, Zipf's law, BRICS, rolling sample regressions |
JEL: R1 - General Regional Economics (includes Regional Data) C2 - Single Equation Models; Single Variables: General |
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Manuscript Received : May 06 2021 | | Manuscript Accepted : Dec 29 2021 |
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