Why Equity Cannot Simply Replace Salary
This series examines employee equity in startups: why young firms offer ownership claims, how those claims interact with cash wages and founder control, and what they actually change for workers. The specific question is whether equity can be treated as salary in another form. The evidence points to a more demanding answer. Equity can be financially important and can influence whether people stay or advance, but it arrives with a different clock, a different risk bearer, and a different effect on ownership. Understanding those differences helps a reader judge what an equity package is designed to do instead of accepting either the promise that it creates loyalty or the dismissal that it is merely a small perk.
The mistake begins with a superficially reasonable comparison. A startup has a limited compensation budget, so it may seem that the founder can choose some amount of cash or an equivalent amount of shares. But salary is money paid for work now. Equity is a claim on a firm whose future value is uncertain, often difficult to observe between financing events, and frequently conditional on remaining with the firm. The two can be placed in the same employment package, but they do not expose the employee or the existing owners to the same consequences.
What the salary-substitute frame leaves out
A wage transfers cash from the firm to the employee immediately. Once paid, it does not depend on a future funding round, sale, or public listing. The firm bears the immediate liquidity cost, while the employee receives relatively clear purchasing power. An equity grant reverses part of that timing. It may conserve cash today, but the employee receives a contingent claim whose value depends on what happens to the startup and, in many arrangements, on whether the employee remains long enough to vest or exercise it.
That difference is not just a matter of financial vocabulary. For the employee, equity can be worth a great deal, very little, or nothing in a relevant time window. For founders and other existing owners, granting equity is not free: it dilutes their share of any future value and can alter control. A startup therefore faces two scarce resources at once. Cash is scarce because young firms have limited internal funds and costly access to external capital. Ownership is scarce because every new claim changes who participates in the upside and who has influence over the firm.
The Finnish study at the center of this series makes that dual scarcity explicit. It treats employee equity as an endogenous part of startup financing and ownership allocation, not only as an incentive device. When cash wages rise, a constrained firm may have to re-optimize the mix. That can mean less equity, a different allocation among employees, changes in hiring, or another financing response. The prediction is not that equity is always inferior to cash. It is that the two forms of compensation solve different constraints and therefore cannot be compared without specifying the problem the firm is trying to solve.
The employee's decision also differs. A wage is valuable when it is paid; an equity claim becomes valuable through the firm's future performance. Equity may strengthen the connection between the employee's effort and the value of remaining with the firm. But that connection is conditional. It is stronger when the firm has credible prospects and weaker when outside opportunities are abundant or the path to realizing the claim is remote. Calling the claim “salary” hides the very conditions that determine its value.
A startup is trading cash for a claim on the future
The simplest way to see the trade-off is to imagine a startup hiring someone whose outside option sets a minimum acceptable employment package. The firm can meet that threshold with cash, equity, or a combination. If regulation or market conditions force the cash component upward, less of the package can be allocated to equity while keeping the total package within the firm's constraints. The equity grant is the residual financing margin, not a free supplement.
That margin has a second role. In the Finnish paper's model, an employee with more equity has a stronger financial reason to exert effort because part of the value created by the firm accrues to them. Greater effort can increase the value of staying and can improve the probability of internal advancement. This is a mechanism for retention and promotion, not a guarantee that every equity holder will stay or rise. The same grant can therefore be both a way to conserve cash and a way to shape behavior, while also imposing a dilution cost on existing owners.
The distinction matters because a firm can be successful at one objective and unsuccessful at another. An option plan may keep an employee through a product launch but not create long-term attachment. A grant may align effort without making an inadequate cash wage acceptable. A package may preserve startup liquidity while transferring more risk to an employee who cannot easily bear it. “More equity” is not a complete evaluation; its meaning depends on the objective, the timing, and the parties' alternatives.
The diagram is intentionally asymmetric. Cash solves an immediate payment need. Equity carries a future claim and changes the ownership structure at the same time. The claim can affect workforce outcomes, but those outcomes are downstream of a chain that includes liquidity, firm value, continued employment, and the employee's alternatives. None of that makes equity illegitimate. It makes the claim more specific than the phrase “salary substitute” suggests.
The evidence asks what equity changes, and for whom
The Finnish evidence follows this logic inside a large administrative panel of startups. It covers 16,347 qualifying Finnish startups and more than two million individual–startup–year observations, focusing on firms that reach at least ten employees and have complete shareholder information. Equity is not universal in this setting: only 6.0% of employees ever hold equity in the focal firm. That fact alone should temper both the idea that equity is the normal currency of startup work and the idea that it is too marginal to matter.
Employees who hold equity look very different from those who do not. In the first year of tenure, the reported exit rate is 14.2% for equity holders and 43.8% for employees who never hold equity in the focal firm. Equity holders also have higher promotion rates across tenure. Those gaps are important, but they are not causal evidence. Firms may give equity to people they already expect to be productive or committed; those employees may also have different outside options. The relevant question is not simply whether equity holders stay. It is whether an outside change in the cost of cash compensation causes firms to adjust equity, and whether that induced change affects later outcomes.
The study addresses that question using collective-bargaining extensions in Finland. An extension can make an occupation–experience wage schedule binding for firms that were previously uncovered. The resulting cash shock is not chosen by an individual startup. The study also uses workers' pre-extension wage shortfalls relative to the negotiated schedule to capture differences in how strongly the legal floor should bind. In the reported results, exposure to an extension reduces individual employee equity by roughly 10–11%, while the instrumented equity changes are associated with lower one-year exit and more internal advancement.
A second study provides a different view through broad-based stock options at U.S. public firms. It examines large option grants and establishment-level turnover rather than individual ownership and promotion in startups. Its central contribution is temporal: turnover falls while options are unvested, then rises around the point at which most or all of the options are expected to have vested. The authors estimate that 87% of the reduction observed in the first three years is reversed in the following year. Thus an option plan can buy time without buying permanent retention.
These studies belong in the same conversation because both examine deferred ownership claims and workforce mobility. They should not be treated as identical experiments. The Finnish study uses individual-level administrative ownership and employment data from 2006–2022, with causal variation from wage constraints. The U.S. study uses a constructed measure of unusually large broad-based option grants, linked to public-firm data from 1995–2005, and measures turnover quarterly at establishments. Their populations, instruments, outcomes, and time horizons differ. The comparison is useful for understanding the mechanism, not for producing a single universal equity effect.
The question to carry forward
The right question is therefore not “How much salary can this equity replace?” It is “What problem is this contingent claim meant to solve, and who bears the consequences if the future is different?” Answering it requires attention to at least four connected facts: whether the firm needs to preserve cash, how much dilution existing owners can accept, when the employee can realize value, and how attractive the alternatives outside the firm are.
The rest of this series uses the two studies to examine those facts in order. It begins with the wage-floor mechanism that can shrink employee equity, then tests what the Finnish design can establish about retention and advancement. It follows the claim through vesting and turnover, considers why technology and firm position change its force, and ends with a bounded way to judge an equity package. The conclusion will not be that equity is bad or that salary is always sufficient. It will be narrower and more useful: equity can be a meaningful financing and incentive instrument, but its value cannot be understood by pretending that a future ownership claim is simply cash paid later.