Potash Corp.’s shareholder rights plan will prevent any party from accumulating a stake of more than 20 percent without making an offer to all stockholders.

加拿大钾肥公司昨天宣布了一项股东权益计划，来阻止任何一方未经全体股东的同意而持有20%以上的股票。

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Where, they ask, is the discussion of America's poor shareholder rights compared with Britain's?

ECONOMIST: America's capital markets

These include shareholdings worth at least 5% of a company's voting rights (if the shareholder is an employee) or 25% (if not).

ECONOMIST: Go forth and multiply

Welcome to Vladivostok, capital of the Russian Far East, where there is unfolding a shareholder-rights drama that, even by Russia's demanding standards, is unusually robust.

ECONOMIST: The hedgehog and the fox