Skilled Immigration Access and Corporate Financial Policy

Technical Summary: Skilled Immigration Access and Corporate Financial Policy

Problem Statement
This paper investigates how access to scarce skilled labor influences the corporate financial policy of public firms. While existing literature extensively covers how taxes, bankruptcy costs, information frictions, and market timing affect capital structure, this study posits that access to skilled foreign workers—specifically through the U.S. H-1B program—constitutes a distinct margin affecting firm valuation and financing. The central question is whether the ability to hire scarce skilled labor (engineers, researchers, data scientists) alters how firms are valued by investors and, consequently, how their capital structures are measured. The paper focuses on market leverage (the ratio of debt to the sum of debt and market equity) rather than book leverage, arguing that skilled labor access primarily impacts the market value of equity, thereby shifting the denominator of the leverage ratio even if book debt remains static.

Methodology and Data
The study constructs a novel panel dataset by linking U.S. Department of Labor Labor Condition Application (LCA) disclosures (2008–2025) with Compustat and CRSP data for public firms.

• Data Construction: A critical contribution is a manually verified crosswalk connecting 392 DOL employer entities to 339 distinct public firms (via gvkeys). This process filters out private firms, subsidiaries, and trade name variants, ensuring that labor exposure is accurately mapped to public financial statements. The final sample includes 210,431 firm-year observations, with 4,390 having matched H-1B exposure.
• Empirical Strategy:
  1. Baseline Fixed Effects: The paper first establishes a correlation using firm and year fixed effects regressions: $Y_{i,t} = \beta NewH1B_{i,t-1} + X'_{i,t-1}\Gamma + \alpha_i + \lambda_t + \epsilon_{i,t}$. Here, $Y_{i,t}$ is market leverage, and the key independent variable is lagged new H-1B hiring.
  2. Causal Identification (Shift-Share Design): To address endogeneity, the paper employs a predicted access improvement design. The instrument ($Z_{i,t}$) is constructed by interacting a firm's baseline H-1B exposure (measured 2008–2012) with national declines in H-1B cap pressure (an improvement in access). This follows a shift-share logic where firms with higher historical reliance on the program are more exposed to national policy shifts.
  3. Two-Stage Framework:
     • First Stage: Predicted access improvements are shown to significantly increase new H-1B hiring.
     • Reduced Form: The same predicted access improvements are tested against market leverage.
  4. Validation: The study includes timing tests (checking if future shocks predict current outcomes), heterogeneity analysis (by sales growth, R&D intensity, and capital investment), and extensive robustness checks (excluding large IT service providers, top 1% of exposed observations, and leave-one-year-out tests).

Key Results

• Baseline Association: In firm and year fixed effects models, a one standard deviation increase in lagged new H-1B hiring is associated with a 2.26 percentage point increase in market leverage. This result holds when excluding large IT service providers and extreme observations.
• Mechanism (Valuation vs. Debt): The increase in market leverage is driven primarily by a decrease in the market value of equity (a 17.13% decrease associated with the hiring shock), while the response in book debt is comparatively small. This confirms that the leverage change is a market-based capital structure response to valuation shifts, not a mechanical increase in borrowing.
• Heterogeneity: The effect is strongest in firms where skilled labor is most central to production. Specifically, the leverage response is 3.06 percentage points for high sales growth firms and 4.78 percentage points for high R&D intensity firms, compared to smaller effects in low-growth or low-R&D firms.
• Causal Evidence: The reduced form analysis shows that a one standard deviation increase in predicted H-1B access improvements raises market leverage by 0.423 percentage points. The first stage confirms these improvements lead to a 0.094 log point increase in new H-1B hiring.
• Timing: Lagged access improvements predict current hiring and leverage, while future access improvements do not predict current outcomes, supporting the causal direction of the mechanism.

Significance and Claims
The paper claims to contribute to three distinct literatures:

1. Capital Structure Literature: It adds skilled labor access as a determinant of market leverage, complementing traditional factors like taxes and information asymmetry.
2. Strategic Human Capital and Finance: It moves beyond labor cost or bargaining power channels to demonstrate that access to scarce skilled labor as a productive input directly alters market valuation and capital structure.
3. High-Skilled Immigration Literature: It extends the known effects of H-1B programs on innovation and productivity to include corporate financial policy outcomes.

The author argues that for firms relying on specialized talent, access to skilled immigration is not merely an employment issue but a constraint that shapes the firm's strategic resources and, subsequently, its financial structure. The evidence suggests that when access to scarce skilled labor improves, historically exposed firms hire more, investors adjust their valuation of the firm's growth options and intangible assets, and this valuation shift manifests as a change in market leverage. The study concludes that skilled labor policy and corporate financial policy are interconnected, with labor access serving as a critical input into the organization of both strategic resources and financial structure.