The data gathering process was divided into three phases. The first phase consisted in obtaining detailed information on all the public purchases performed under the menor cuantia processes for the years 2008-2012. This provided information on each public purchase as well as all individuals and firms that submitted a bid to participate in each public work. The second phase of the project consisted in obtaining detailed information on each individual and firm that participated in the menor cuantia process during the sample period. The third and final phase of the project, consisted in cleaning and entering this information into a database.
This paper provides a method to classify TL3 regions across OECD countries based on their level of access to metropolitan areas. TL3 regions are classified as 'metropolitan' if more than half of their population lives in one or more functional urban area (FUA) of at least 250 thousand inhabitants and as 'non-metropolitan' otherwise. The method sub-classifies metropolitan regions into 'large metro' or 'metro' regions based on the population size of the FUAs located within those regions. Non-metropolitan TL3 regions are sub-classified into: with access to a metro, with access to a small/medium city, or remote based on their level of access to a FUA with population above a predetermined threshold. The method relies on publicly available grid-level population data and localised information on driving conditions.
This document, as well as any data and map included herein, are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries and to the name of any territory, city or area. 2 ECO/WKP(2019)43 Unclassified OECD Working Papers should not be reported as representing the official views of the OECD or of its member countries. The opinions expressed and arguments employed are those of the author(s). Working Papers describe preliminary results or research in progress by the author(s) and are published to stimulate discussion on a broad range of issues on which the OECD works. Comments on Working Papers are welcomed, and may be sent to the Economics Department, OECD,
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