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Returns to Scale and Productivity

This paper endogenises returns to scale and highlights a more complicated relationship between scale economies and productivity. We empirically investigate this relationship at the firm-level, across industries, and the aggregate. Changing business dynamism can reconcile the paradoxical results.

Returns to Scale and the Role of Computer Software

This paper investigates returns to scale in the UK, and the role of computer software in affecting scale economies.

Firms That Automate: Theory and Evidence

This paper investigates the adoption of automation technologies at a firm level using a novel dataset. I build a strucutral model of firm dynamics to better understand the implications of these findings for the macroeconomy. I reconcile the finding that automating firms grow, but on aggregate, such technologies seem to reduce employment.