A couple of connections between entrepreneurship and The Big Shift (TBS) clicked for me while I was reading the research report I've discussed here and here. I'm not sure if those connections are valid but they still work for me after a few days of consideration.
I see the "entrepreneurial economy" that has risen in the U.S. over the past 25 years or so as partially being both cause and effect of TBS. The drivers behind TBS have created waves of disruptive innovation in industry after industry which partially gives rise to the dramatic rise in topple rate found by TBS researchers as well as helps create the dramatic rise in competitive intensity. Once this starts it seems to me that another impact of the digital technologies that are being deployed in the big shift is that you get a self-reinforcing spiral of innovation, more toppling, even more competitive intensity, etc.
All of the disruption of industry leaders has also led to many workers being shaken loose from companies impacted by lower ROA, increased competition, etc. I think that's had the effect of creating lots of new entrepreneurs. Some of these new entrepreneurs felt pushed to start businesses due to changes in the economy while some viewed it as an opportunity to take control of their own destiny. Some transitioned back to established company jobs when one came along but many came to love the combination of freedom, control, passion, learning, etc. that they felt as entrepreneurs.
Now, the Big Shift isn't the only driver to all of this. Globalization is as well, although it seems to me that TBS and globalization have a bit of a cause/effect relationship too. I think we'd be seeing big changes in the economy due to globalization even without the rise of digital enabling infrastructures, etc. But, I think that TBS has enabled the effects of globalization to accelerate and intensify - which also has driven greater rates of entrepreneurship in both the U.S. and elsewhere.