New firm formation is a critical driver of job creation, and an important contributor to the responsiveness of the economy to aggregate shocks. In this paper we examine the characteristics of the individuals who become entrepreneurs when local opportunities arise due to an increase in local demand. We identify local demand shocks by linking fluctuations in global commodity prices to municipality level agricultural endowments in Brazil. We find that the firm creation response is almost entirely driven by young and skilled individuals, as measured by their level of experience, education, and past occupations involving creativity, problem-solving and managerial roles. In contrast, we find no such response within the same municipalities among skilled, yet older individuals, highlighting the importance of lifecycle considerations. These responsive individuals are younger and more skilled than the average entrepreneur in the population. The entrepreneurial response of young individuals is larger in municipalities with better access to finance, and in municipalities with more skilled human capital. These results highlight how the characteristics of the local population can have a significant impact on the entrepreneurial responsiveness of the economy.

This paper examines how government funding programs geared towards early-stage companies interact with private capital markets. Using hand-collected data on 755 government programs worldwide, we find that governments' allocations to such funding programs have been comparable to global venture capital disbursements in the past decade. Government programs were more frequent in periods with more private venture activity, a relationship that was stronger in nations with better public governance. The programs' structures often relied on the local private sector. The private sector's involvement was greater when government programs targeted earlier-stage companies and when rankings of government effectiveness were higher. We find that such government funding programs increased local innovation, particularly when the programs focused on early-stage ventures or collaborated with the private sector. These findings are most consistent with the explanation that the reliance on private capital markets enabled governments to mitigate investment frictions and improve capital allocation.

The growth of the private equity industry has spurred concerns about its potential impact on the economy more generally. This analysis looks across nations and industries to assess the impact of private equity on industry performance. Industries where PE funds have invested in the past five years have grown more quickly in terms of productivity and employment. There are few significant differences between industries with limited and high private equity activity. It is hard to find support for claims that economic activity in industries with private equity backing is more exposed to aggregate shocks. The results using lagged private equity investments suggest that the results are not driven by reverse causality. These patterns are not driven solely by common law nations such as the United Kingdom and United States, but also hold in Continental Europe.

We characterize the contribution of immigrants to US innovation, both through their direct productivity as well as through their indirect spillover effects on their native collaborators. To do so, we link patent records to a database containing the first five digits of more than 230 million of Social Security Numbers (SSN). By combining this part of the SSN together with year of birth, we identify whether individuals are immigrants based on the age at which their Social Security Number is assigned. We find immigrants represent 16 percent of all US inventors, but produced 23 percent of total innovation output, as measured by number of patents, patent citations, and the economic value of these patents. Immigrant inventors are more likely to rely on foreign technologies, to collaborate with foreign inventors, and to be cited in foreign markets, thus contributing to the importation and diffusion of ideas across borders. Using an identification strategy that exploits premature inventor deaths, we find that immigrant inventors create especially strong positive externalities on the innovation production of their collaborators, while natives have a much weaker impact. A simple decomposition illustrates that immigrants are responsible for 36% of aggregate innovation, two-thirds of which is due to their innovation externalities on their native-born collaborators.

We analyze a field experiment conducted on AngelList Talent, a large online search platform for startup jobs. In the experiment, AngelList randomly informed job seekers of whether a startup was funded by a top-tier investor and/or was funded recently. We find that the same startup receives significantly more interest when information about top-tier investors is provided. Information about recent funding has no effect. The effect of top-tier investors is not driven by low-quality candidates and is stronger for earlier-stage startups. The results show that venture capitalists can add value passively, simply by attaching their names to startups.

This paper investigates the effects of going public on innovation by comparing the innovative activity of firms that went public with firms that withdrew their IPO filing and remained private. NASDAQ fluctuations during the book-building phase are used as an instrument for IPO completion. Using patent-based metrics, I find that the quality of internal innovation declines following the IPO and firms experience both an exodus of skilled inventors and a decline in productivity of remaining inventors. However, public firms attract new human capital and acquire external innovations. The analysis reveals that going public changes firms' strategies in pursuing innovation.

We examine the characteristics of the individuals who become entrepreneurs when local opportunities arise. We identify local demand shocks by linking fluctuations in global commodity prices to municipality-level agricultural endowments in Brazil. We find that the firm creation response is mostly driven by young and skilled individuals. The characteristics of these responsive entrepreneurs are significantly different from those of average entrepreneurs in the economy. By structurally estimating a novel two-sector model of a local economy, we highlight how the demographic composition of the local population can significantly affect the entrepreneurial responsiveness of the economy.

The growth of the private equity industry has spurred concerns about its potential impact on the economy more generally. This analysis looks across nations and industries to assess the impact of private equity on industry performance. Industries where PE funds have invested in the past five years have grown more quickly in terms of productivity and employment. There are few significant differences between industries with limited and high private equity activity. It is hard to find support for claims that economic activity in industries with private equity backing is more exposed to aggregate shocks. The results using lagged private equity investments suggest that the results are not driven by reverse causality. These patterns are not driven solely by common law nations such as the United Kingdom and United States, but also hold in Continental Europe.