Politicians advocate them when they are in opposition, but rarely embrace and sustain them when in government. The reason is simple: front-loaded costs and back-loaded benefits make structural reforms politically perilous.
这类改革向来不易实施，通常也难以完成。政客总是在处于反对党地位时支持改革，一旦执政，就很少会持续它们。原因很简单：前置成本和后置收益意味着结构改革的政治风险巨大。