The datasets described below are made available to the Drexel University community by the Retail Environment and Cardiovascular Disease (RECVD) study of the Urban Health Collaborative in the Dornsife School of Public Health. Authorized users of Drexel University may access and use the NETS datasets solely for the purpose of nonprofit, academic efforts including research, classroom assignments, student projects, or scholarly publications while enrolled or employed at Drexel University. The NETS Datasets are derived from public and commercially-licensed data..
Users requesting access to these datasets are required to affirm adherence to terms specified in our data use agreement, and are expected to include an appropriate acknowledgement in any resulting papers or conference presentations.
Drexel University students, staff, and faculty working with the NETS data, please note the NETS license expires December 30, 2020. Access to data can be maintained for verification. However, no new work with business level data can be initiated after December 30, 2020. Please contact Jody Bayer (email@example.com) with any questions.
National Establishment Time Series (NETS) Data
National Establishment Time Series datasets include information on more than 58 million U.S. business establishments for the years 1990-2014. The data is compiled by Walls & Associates in collaboration with Dun & Bradstreet, using annual snapshots from Duns Marketing Information files. The longitudinal datasets provide an unprecedented opportunity to characterize changing neighborhood and business environments. Our license to use this data expires December 30, 2020.
Examples of variables: business name, address and contact information, headquarters linkages, years active, industry classifications (SIC), type of establishment, employment at location and job growth, estimate annual sales, D&B credit ratings, etc.
NETS Business Level with UHCID
Re-geocoded NETS data re-categorized by the RECVD study team. Definitions of categories from the domains of Food Environments, Health Care Delivery, Physical Activity, Social and Walking Destinations can be found on our website. To create these categories, NETS data checks were supplemented with licensed chain name lists from TDLinx and publicly available data from Restaurants & Institutions.
NETS Aggregation with Census Tracts and Zip Code Tabulation Areas
The RECVD study team of the Urban Health Collaborative have enhanced the NETS dataset by incorporating Census Tract and ZCTA (Zip Code Tabulation Area) mapping, recategorization of business/industry classifications, Nielsen/TDLinx marketing data, and CrimeRisk data (from ESRI). While each year from 1990-2014 is available for retail, available years vary for other sources.
Census Tract (using 2010 boundaries) and ZCTA aggregations of NETS data throughout the contiguous US, with public transit and CrimeRisk data (from ESRI).