When Equity Works Better—and When It Works Less Well

Employee equity in startups has no fixed effect that can be read from the grant size alone. Its force changes with the employee's alternatives, the value of the claim while it is unvested, and the credibility of the firm that issued it. This chapter compares those conditions: the Finnish evidence on high-R&D labor markets, the U.S. evidence on post-grant market returns, and the different organizational patterns associated with market leadership and ownership concentration. The aim is a conditional judgment, not a universal ranking of equity against salary.

The same ownership claim can be more persuasive in one setting and less persuasive in another for reasons that are economically connected. A worker with many outside opportunities has a higher cost of waiting. A rise in market value can make an unvested option more valuable, but it can also make other jobs more attractive. A market-leading firm may pair equity with a credible growth path, while a concentrated ownership structure may stabilize the workforce yet reduce promotion or expansion. These are not exceptions to the mechanism; they are the environment in which the mechanism operates.

Outside options and claim value move together

The Finnish study finds weaker equity effects in high-R&D industries. In its heterogeneous specifications, the implied retention effect is roughly 40–45% smaller in technologically intensive industries, and the promotion effect is about 25–30% smaller. The paper interprets this attenuation as consistent with stronger outside labor-market opportunities and higher employee mobility. The classification is based on industry R&D intensity, so it is not a direct measure of every worker's alternatives. Still, the direction is economically intuitive: the more credible an immediate alternative, the more valuable it must be to wait for a contingent claim.

This is not the same as saying that high-technology employees do not care about equity. It says that an equity claim is evaluated against an opportunity cost that may be high and fast-moving. An employee who can move to another firm without losing much future value may give less weight to a promise that pays only if the current firm succeeds later. The startup may respond by using more cash, a different ownership allocation, or a clearer advancement path, but the Finnish evidence only establishes that the estimated equity effect is attenuated in the high-R&D setting. It does not identify which alternative instrument would replace it.

The U.S. study adds a related but more dynamic test. It asks whether a broad-based stock option plan becomes more effective at reducing turnover when the value of unvested options rises after the plan is granted. The timing is central. Market and industry returns are measured after the grant and before the turnover window and expected vesting period, so the maintained interpretation is that managers could not have used those future returns to choose the plan. If a worker is deciding whether to leave while options remain unvested, a higher value of those options increases what the worker gives up by quitting.

The reported interaction between a BBSO plan and post-grant returns is negative in the main specifications, with statistical significance for the equal-weighted market and industry-return measures. Turnover is therefore more strongly reduced after a plan when subsequent market or industry performance makes the deferred claim more valuable. The pattern is especially pronounced for firms whose stock prices are highly correlated with those of their industry peers.