Hi David! Thanks for the interesting read! Together with Fabian Scheifele, we use a Callaway-Sant'Anna DiD approach to look at the effect of local content requirements in Indian solar auctions, the main industrial policy to promote a globally competitive industry, on targeted firms revenue and innovation (solar patents). The paper is forthcoming in Energy Policy "Nurturing National Champions? Local Content in Solar Auctions and Firm Innovation". Ungated version on SSRN (or my website).