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Working Paper
Entrepreneurship through Employee Mobility, Innovation, and Growth
Firm-level productivity differences are big and largely ascribed to ex-ante heterogeneity in the entrepreneurs’ growth potential at birth. Where do these ex-ante differences come from, and what can the policy do to encourage the entry of high-growth entrepreneurs? I study empirically and by means of a quantitative growth model the spinout firms: the firms founded by former employees of the incumbent firms. By focusing on innovating spinouts identified through the inventor mobility in the patent data, I document that spinout entrants significantly outperform regular entrants throughout their ...
Working Paper
Patents to Products: Product Innovation and Firm Dynamics
We study the relationship between patents and actual product innovation in the market, and how this relationship varies with firms’ market share. We use textual analysis to create a new data set that links patents to products of firms in the consumer goods sector. We find that patent filings are positively associated with subsequent product innovation by firms, but at least half of product innovation and growth comes from firms that never patent. We also find that market leaders use patents differently from followers. Market leaders have lower product innovation rates, though they rely on ...
Working Paper
Connecting to Power: Political Connections, Innovation, and Firm Dynamics
How do political connections affect firm dynamics, innovation, and creative destruction? To answer this question, we build a firm dynamics model, where we allow firms to invest in innovation and/or political connection to advance their productivity and to overcome certain market frictions. Our model generates a number of theoretical testable predictions and highlights a new interaction between static gains and dynamic losses from rent-seeking in aggregate productivity. We test the predictions of our model using a brand-new dataset on Italian firms and their workers. Our dataset spans the ...
Working Paper
The Expansion of Varieties in the New Age of Advertising
The last decades have seen large improvements in digital advertising technology that allowed firms to better target specific consumer tastes. This research studies the relationship among digital advertising, the rise of varieties, and economic welfare. We develop a model of advertising and varieties where firms choose the intensity of digital ads directed at specific consumers as well as traditional ads that are undirected. The calibrated model shows that improvements in digital advertising have driven the rise in varieties over time. Empirical evidence is presented using detailed micro data ...
Working Paper
Barriers to Creative Destruction: Large Firms and Nonproductive Strategies
This working paper reviews recent empirical evidence on large firms and nonproductivestrategies that hinder creative destruction and reallocation. The focus is on three types ofnonproductive strategies: political connections, nonproductive patenting, and anticompetitiveacquisitions. Across different contexts using granular micro data sets, we overwhelmingly see that asfirms gain market share, they increasingly rely on nonproductive strategies but reduce theirproductive, innovation-based strategies. I also discuss theoretical channels, aggregate implications,and potentials for some policies.
Journal Article
Do Credit Supply Shocks Constrain Employment Growth of Small and Medium-Sized Enterprises?
Small and medium-sized enterprises (SMEs) made outsized contributions to net employment growth during the pandemic recession and recovery. However, credit conditions have tightened significantly during the past year and might hinder growth for small firms going forward. Using data on bank lending to small businesses and employment growth, we estimate that a tightening in bank credit supply of 1 percentage point is associated with an 11 percent decline in SMEs' net job creation rate. This estimate indicates that a bank credit tightening about one-third the size of the tightening observed ...