Isaac I. Hacamo
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REAL ESTATE  & URBAN ECON
The Babies of Mortgage Market Deregulation
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Review of Financial Studies, 2020
This paper documents that mortgage market deregulation helps mitigate the risk of population aging by affecting a foundational family-level decision: the choice to have children. Using a U.S. federal regulator ruling, I show that young households fully exposed to mortgage market deregulation increase their probability of purchasing a home and having a child by 6 percentage points. Supplemental tests reject alternative hypotheses based on income or housing wealth growth and, instead, suggest that access to space is the relevant economic mechanism. Collectively, the evidence indicates that increased access to mortgage credit affects the total number of children in the economy.

Internet Appendix 
Link to RFS
Link to SSRN
​​Interest Rates and the Distribution of House Prices

Review of Economic Studies​, Accepted
How do interest rates affect the distribution of house prices? I develop a housing assignment framework and exploit incidental differences in the income distribution to identify the model. A one percentage point decline in mortgage rates causes a 6% contemporaneous increase in home values in middle-priced neighborhoods. High-priced neighborhoods experience half of this increase, while low-priced neighborhoods exhibit no change. Mortgage applications exhibit a similar pattern. The results also underscore the persistence of interest rate shocks. The rate shocks in between Jul-2000 and Dec-2001 account for a significant amount of price variation in middle-priced neighborhoods during the 2000s housing boom.

Link to SSRN
Priced-out: Rent Control, Wages, and Inequality (with Geraldo Cerqueiro, Pedro Raposo, and Derek Wenning)​
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Jan 2026, Submitted
We examine whether rent control helps low-income workers access high-wage jobs and whether housing vouchers achieve similar outcomes more efficiently. Following a quasi-exogenous loss of rent control, low-income workers’ earnings decline. High-income workers are unaffected, despite being equally likely to migrate outside the city. This effect is driven by individuals without a personal vehicle who use public transit for commuting. Using a quantitative commuting model with rent control, our counterfactual analysis shows that, relative to rent control, housing vouchers reduce taxation on landlords and regional inequality among low-income workers, but only replicate welfare gains if they do not restrict mobility.​
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Link to SSRN
Tax Increment Financing and Business Dynamism (with Seohee Kim)​
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Dec 2025
Can cities use future incremental property tax revenue in underdeveloped areas to finance current investment and stimulate business dynamism? Exploiting the staggered rollout of Tax Increment Financing (TIF) legislation beginning in the 1960s, we find that allowing municipalities to earmark future incremental property tax revenue for economic development increases the annual net-entry rate of small firms. This dynamism creates new jobs, reduces poverty rates, and lowers enrollment in food-assistance programs among individuals without a college degree. However, TIF also raises counties' borrowing costs and diverts funds from other public services, generating spillover costs of approximately $221.6 k per additional firm created.
CORPORATE FINANCE, LABOR & ENTREPRENEURSHIP 
Information Dispersion Across Employees and Stock Returns (with Ashwini Agrawal and Zhongchen Hu)​

​Review of Financial Studies, 2020
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-> Review of Financial Studies Best Paper Award in Behavioral Finance
Rank-and-file employees are becoming increasingly critical for many firms, yet we know little about how their employment dynamics matter for stock prices. We analyze new data from the individual CV’s of public company employees and find that rank-and-file labor flows can be used to predict abnormal stock returns. Accounting data and survey evidence indicate that workers’ labor market decisions reflect information about future corporate earnings. Investors, however, do not appear to fully incorporate this information into their earnings expectations. The findings support the hypothesis that rank-and-file employees’ entry and exit decisions reveal valuable insights into their employers’ future stock performance.

Link to RFS
Link to SSRN
Forced Entrepreneurs (with Kristoph Kleiner)

​Journal of Finance, 2022
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-> Journal of Finance Brattle Group Prize Distinguished Paper awarded
Conventional wisdom suggests labor market declines drive workers towards temporary entrepreneurship and self-employment, lowering the quality of startups. Analyzing the employment histories of 640,000 workers, we document graduating college during a period of high unemployment does increase entry to entrepreneurship. However, based on multiple measures of success, including survival, growth, innovation, and venture capital funding, recession-driven entrepreneurs are equal to or more capable than voluntary entrepreneurs. Explaining these results, we find labor shocks disproportionately impact workers with the greatest wage potential and these same workers start highly-successful firms. Overall, we confirm the prevalence of untapped entrepreneurial potential in the workforce, especially across the top of the income distribution.

Link to
 JF 

Link to SSRN
Competing for Talent: Firms, Managers, and Social Networks (with Kristoph Kleiner)

​Review of Financial Studies, 2022
Do social networks help firms recruiting talented managers? In our setting, firms are randomly connected to prospective young managers through former employees. Under a discrete-choice model, we find networks increase the likelihood firms hire high-ability managers, while having no effect on the hiring rate of low-ability managers. Effects are greatest for nonlocal firms, strong ties, and peers living in the same neighborhood. Survey evidence suggests social networks promote recruitment by providing information about firm fundamentals to potential applicants. Our results help rationalize why the majority of managers hold prior connections to the firm.

Link to RFS
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No Experience Necessary: The Peer Effects of Intended Entrepreneurs  (with Kristoph Kleiner)​
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Review of Finance​, 2024
Under a randomized setting, this paper finds workers with entrepreneurial ambition--intended entrepreneurs--are (i) far more common than workers with past entrepreneurial experience and (ii) increase the rate of entrepreneurship among their peers. Peer effects are persistent, stronger for tighter networks, and extend to the decision to join a startup. As intended peers explain half of the variation in entrepreneurship rates in our sample, our results demonstrate that intended entrepreneurs, even those that never personally start a firm, represent a vital component of the entrepreneurial ecosystem.

Link to RF
Link to SSRN
Racial Prejudice in the Workplace and Firm Boycotts​

Journal of Political Economy​, Reject and resubmit

I investigate the impact of contemporary grassroots boycotts on addressing racial discriminatory practices within a firm. Introducing new data on allegations of racial prejudice in the workplace, I show that when these allegations are more (randomly) prominent to prospective employees and consumers, foot traffic declines by 4-5% at stores located in predominantly non-white, young, and low-income zip codes. Additional results show that information spreads quickly between internet platforms, shedding light into the mechanisms of a grassroots boycott. A randomized survey experiment confirms that prospective employees and consumers boycott a firm after learning about incidents of workplace racial prejudice.


​Link to SSRN

Employees Discriminating Against Firms (with Zhongchen Hu)​
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Jan 2026, Submitted
Using a high-stakes field experiment with nearly 9,000 individuals graduating from top U.S. universities, we test whether high-skill employees discriminate against female-led businesses. We create 18 high-growth startups arranged in identical pairs that differ only by the founders' gender, which we signal using matched AI-generated headshots. Founders email prospective employees to introduce a job opening and request a meeting to discuss the role. Male entrepreneurs secure a 10% meeting-acceptance rate, while an otherwise identical female founders receive a 30--50% lower rate. Conditional on responding, applicants express less enthusiasm toward female founders. The gap is similar across applicant genders and is largest among individuals with stronger outside options. We then examine whether a priming intervention can reduce this gap and shed light on the underlying mechanism. As startup success critically depends on access to venture capital funding, we implement a priming intervention designed to reduce beliefs about gender discrimination in venture capital markets. The intervention reduces the response gap by 90%. We complement these findings with a randomized survey that provides support for a theory of third-party discrimination, whereby employees internalize the discrimination experienced by their potential employers.​
OTHER PUBLICATIONS 
Reproducibility in Management Science (Member of the Reproducibility Collaboration Team)​

Management Science, 2023
With the help of more than 700 reviewers, we assess the reproducibility of nearly 500 articles published in the journal Management Science before and after the introduction of a new Data and Code Disclosure policy in 2019. When considering only articles for which data accessibility and hardware and software requirements were not an obstacle for reviewers, the results of more than 95% of articles under the new disclosure policy could be fully or largely computationally reproduced. However, for 29% of articles, at least part of the data set was not accessible to the reviewer. Considering all articles in our sample reduces the share of reproduced articles to 68%. These figures represent a significant increase compared with the period before the introduction of the disclosure policy, where only 12% of articles voluntarily provided replication materials, of which 55% could be (largely) reproduced. Substantial heterogeneity in reproducibility rates across different fields is mainly driven by differences in data set accessibility. Other reasons for unsuccessful reproduction attempts include missing code, unresolvable code errors, weak or missing documentation, and software and hardware requirements and code complexity. Our findings highlight the importance of journal code and data disclosure policies and suggest potential avenues for enhancing their effectiveness.

Link to Management Science
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