Appendix and Methodology

Greater Los Angeles Area: LinkedIn regions in the US are defined based on Nielsen's DMA. DMA (Designated Market Area) regions are the geographic areas in the United States in which local television viewing is measured by The Nielsen Company. The DMA data are essential for any marketer, researcher, or organization seeking to utilize standardized geographic areas within their business. More info can be found here http://www.nielsen.com/intl-campaigns/us/dma-maps.html
Tech- Talent: Tech-Talent is defined by looking at members’ profiles and their current active positions at the companies they work for. We only include members working in a computer tech related job/function regardless of the industry of the company they work for. This helps exclude irrelevant members with tech skills that are not working in a tech function (e.g. accountant, financial analyst).
LinkedIn defines job titles by grouping similar titles listed on member profiles. For instance, Associate Software Developer, Senior Software Developer, and similar titles would be aggregated under Software Developer
2016-2017 hiring spans from January 2016 to May 2017