Firm Entry, Excess Capacity and Endogenous Productivity (2020) with Huw Dixon
In the short-run absence of firm entry, incumbent firms vary their capacity leading to temporary endogenous productivity effects.
Labor Responses, Regulation and Business Churn (2020) with Marta Aloi and Huw Dixon
Labor responses to technology shocks may overshoot or undershoot their long-run level depending on returns to scale at the firm-level.
Measured Productivity with Endogenous Markups and Economic Profits (2020) New version coming soon!
Firm entry has opposing effects on measured TFP through two channels: endogenous markups and economic profits.
Firm Dynamics, Dynamic Reallocation, Variable Markups, and Productivity Behaviour (2017) (Old title: Explaining Productivity Puzzles with Frictional Firm Entry)
A negative supply-side shock can cause productivity dynamics similar to those observed in the UK post financial crisis. This occurs because firms open capacity in the short run and face weaker competition in the long run.
Product Market Concentration and Productivity in the UK (with Oluwaseun Aguda & Kyung In Hwang)
Data analysis web app: https://asavagar.shinyapps.io/UK-market-structure/
Market Power and TFP in the UK (with Kyung In Hwang)
Policy Papers & Notes
UK Business Creation during Covid-19 Lockdown (May 2020) with Alfred Duncan and Miguel León-Ledesma
Product Market Concentration in the UK: 2006-2015 (2019) with Kyung In Hwang
Analyse Department of Business, Energy and Industrial Strategy (BEIS) data on product market concentration in the UK.