Reform Came
for the Corruption —
and Rewrote the Parties

In 1954, Costa Rica did something no other country had tried. It decided, by law, that political parties were too important to democracy to be left at the mercy of private money. The logic was compelling and the diagnosis was accurate. Large corporate donations gave wealthy interests disproportionate influence over elected governments. Incumbent parties monopolized state resources. Electoral competition was neither fair nor clean. The solution, reformers argued, was to fund parties from the national budget — securing fair competition, containing costs, restoring public trust. By 1969, when Israel adopted its own Public Party Funding law, the model had spread to Argentina, West Germany, Austria, and Sweden. The principle seemed self-evident: take money out of politics, and politics becomes less corrupt. Twenty years later, Jonathan Mendilow sat down with two decades of Israeli data and showed, with quiet precision, that the principle had been wrong in almost every detail that mattered — and that the reform had not so much cured the disease as rewritten the organism.

What the Funding Actually Did

Once parties were guaranteed public income, they no longer needed mass membership the way they once had. They did not need the dues, and therefore they did not need the members. In Israel, registered party membership fell from 18% of the adult population before the 1969 law to 8% by 1986. Membership dues, which had previously funded more than half of party budgets, collapsed to under 10% within four years of PPF being introduced. The same pattern appeared in Finland, Austria, Italy, Sweden, and West Germany. The pattern was not accidental. It was structural. Three effects recur across cases, and they travel together.

In Israel, advertising expenditure — virtually absent from earlier campaigns — consumed a third of all campaign budgets by 1969. After an initial decade of compliance, parties exceeded legal spending ceilings by 44% in 1981. By the 1988 campaign, the two dominant parties simply passed a retroactive law raising the ceiling and annulling all sanctions. Italy, Spain, Finland, and Austria followed variations of the same script. Public funding had not constrained the cost of democratic competition; it had underwritten its escalation.

The Paradox the Scholarship Missed

Political scientists had predicted PPF would freeze the party system — entrenching established actors, raising the barrier to entry for challengers, consolidating power in the few parties large enough to write the rules. The prediction was half right and therefore wrong in the way that matters most. Established parties did indeed write funding rules in their own favor. But the structural logic of PPF cut against the consolidation it was supposed to produce. Once a new party won even minimal parliamentary representation, it became eligible for ongoing state subsidies — making survival between elections far easier than it had ever been before. In the two decades preceding PPF, only three new parties managed to enter Israel's parliament. In the two decades after, twenty-three succeeded.

The larger parties' drift toward centrist, catch-all strategies — abandoning ideological clarity for broad electoral appeal — created a vacuum. Smaller, ideologically distinctive parties rushed to fill it: ethnic communities, religious constituencies, territorial hard-liners, reform movements. Paradoxically, PPF simultaneously pushed the main parties toward pragmatic centrism and enabled the proliferation of ideological challengers on their flanks. The system did not consolidate. It polarized and multiplied at once.

Why Israel Is a Magnifying Glass

Mendilow's strongest methodological move is to treat Israel not as an exception but as an intensifier. The speed and intensity of its political dynamics make visible, within two decades, what unfolds more gradually in larger and more stable multiparty systems. The structural consequences — oligarchic centralization, membership decline, spending escalation, and fragmented ideological competition — are visible in European multiparty systems as well. They are not pathologies to be corrected. They are systemic effects of the mechanism itself. The reform worked; these are the things the reform does.

The lesson is not that public funding is wrong. It is that democratic reforms generate unintended consequences that must be studied rigorously and managed continuously. Norms matter even when they are violated. Accountability, however imperfect, constrains behavior in ways no accountability does not. And the definition of democratic fairness is always contested — shaped, most of all, by those who already hold the power to write the rules. Thirty years on, Mendilow's paper reads less as historical diagnosis and more as a quiet warning about every democratic reform that follows. The state can clean politics. It cannot do so without also changing what politics is.