Abstract In January 2011, former Israeli Prime Minister Ehud Barak issued a surprising announcement to take four other members of his Labor Party’s Knesset faction with himself to set up a new political party, Haatzmaut (Independence). The conditions under which this split took place illustrate the ways in which the Israeli anti-defection law, passed in the 12th Knesset, incentivizes the behavior of elected legislators who seek to exit from the party that they were elected to represent. This article shows that the anti-defection law cannot keep a legislative party together that suffers from weak internal cohesion. In fact, by imposing numerical criterion (1/3) on prospective party switchers, the anti-defection law prolongs internal disunity, thereby further weakening an already low level of cohesion.

中文翻译：

---

以色列的政党转换：了解 2011 年工党的分裂

摘要 2011 年 1 月，以色列前总理埃胡德·巴拉克出人意料地宣布将他的工党的以色列议会派系的其他四名成员与自己一起成立一个新的政党 Haatzmaut（独立）。该拆分发生的条件说明了以色列反叛法在第12届视网球传递的方式激励了寻求退出他们所选党的所选立法者的行为。本文表明，反叛法无法将一个内部凝聚力薄弱的立法党团结在一起。事实上，反叛逃法通过对潜在的换党者施加数字标准（1/3），延长了内部不团结，从而进一步削弱了本已很低的凝聚力。