The Portfolio After the Bet: When Risk Pays and When It Doesn't

The subject here is what happens after a VC fund makes the tax-sensitive choice described earlier. The question is whether a shift toward uncertain companies produces only more distress, only higher returns, or a wider distribution containing both. The answer matters for interpreting the QSBS evidence correctly: a higher exit valuation among surviving companies cannot erase failures, and a higher failure rate cannot by itself prove that the policy destroyed value. Readers need the comparison design and its denominators before they can judge the trade-off.

The comparison follows the investment through time

The study uses a triple-difference design to connect three conditions: the portfolio company operates in a QSBS-eligible or ineligible sector; the investment is observed at a holding period of at least five years or less than five years; and the investment entered before or after the 2009 reform. The central interaction is therefore not simply “VC invested in a technology company.” It is the additional outcome associated with the combination of eligible sector, the historical holding threshold, and the post-reform period.

Each dimension removes a different ambiguity. Eligible and ineligible sectors provide a comparison across business activities. Pre- and post-reform investment cohorts distinguish the period when the subsidy was small from the period when it was substantially larger. Holding periods below and above five years separate positions that did and did not reach the historical qualification threshold. The design asks whether outcomes changed especially for investments that satisfy all three conditions, beyond the separate effects of sector, time, and holding duration.

This is a useful bridge between the earlier threshold evidence and portfolio performance. The bunching result showed that investors adjusted exit timing. The asset-cutoff result showed that forward funding differed near an eligibility boundary. The outcome comparison asks whether investments in the tax-sensitive configuration subsequently show a different pattern of failure, funding continuity, valuation, and exit. It does not treat every observed eligible-sector position as legally qualified; the database and design use observable conditions to approximate the relevant configuration.

The distinction between selection and outcome remains important. At entry, the study observes whether VCs choose pre-commercial companies, debt-carrying firms, distant investments, unfamiliar industries, first funding, or less syndication. Later, it observes what happens to those relationships. A failure result is consistent with the fund having selected more uncertain companies, but it is not itself proof of what the fund knew at entry. The outcome evidence becomes persuasive when it fits the earlier selection pattern and the predicted direction of the incentive.

The downside appears in two forms

The first downside measure is complete business failure: the portfolio company goes out of business. Among the study's tax-qualified VC-backed comparisons, the likelihood of this outcome rises by 71 percent relative to the baseline. That is a large relative change, but it is not an assertion that 71 percent of investments fail.