Finding the worst affected industry due to COVID in terms of unemployment
Thank you clarifying the question and the current data available. This is a really interesting project idea and I look forward to hearing more developments on this.
So, with what I have seen so far, without the monthly breakdown of number of businesses by month, then you you can't look at the affect of COVID-19 on an industry-level, unless you compare 2019 with 2020 data.
However, with the data so far you can look at how COVID-19 is affecting unemployment rates and see if they affect certain groups of counties which have a certain industry composition/distribution.
If, for example, particular counties with similar distributions of industries (e.g. 90% Manufacturing, 5% Retail and 5% Information) show greater unemployment from those with a different composition.
Let me know if I need to clarify further. But again, very interesting project, please do keep me in the know with how this goes.