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Delineating Spatial Agglomerations (view source)
Revision as of 18:50, 20 July 2022
, 18:50, 20 July 2022→Overview
== Overview ==
[[File:AgglomerationDataSourcesAndSinks_v2.png|right|thumb|512px|Data Sources and Sinks]] The dataset construction begins with startup data from Thomson Reuters’ [[VentureXpert]]. This data is retrieved using [[SDC Platinum (Wiki)|SDC Platinum]] and comprises information on startup investment amounts and dates, stage descriptions, industries, and addresses. This data is combined with data on mergers and acquisitions from the Securities Data Commission M&A and Global New Issues databases, also available through SDC Platinum, to determine startup exit events. See [[VCDB2020VCDB20]].
[https://www2.census.gov/geo/tiger/TIGER2020/CBSA/tl_2020_us_cbsa.zip Shapefiles from the 2020 U.S. Census TIGER/Line data series] provide the boundaries and names of the MSAs, and a python script (Geocode.py) in conjunction with a [https://developers.google.com/maps/documentation/distance-matrix Google Maps API], provides longitudes and latitudes for startups. We restrict the accuracy of Google’s results to four decimal places, which is [http://wiki.gis.com/wiki/index.php/Decimal_degrees approximately 10m of precision].
