Building a Safe State
研究了美国各州为何采纳技术复杂但政治关注度低的建筑规范，发现邻近州的效仿和州内创新共同推动了法规的扩散。
Although existing studies uncovered how controversial policies are adopted across American States, little is known as to how regulatory policies are diffused that are technically complex and yet have low political salience. Drawing on existing theories of policy adoption and diffusion, this article identifies the determinants of building code mandates in U.S. state governments. Using original data from state legislatures and administrative agencies from 1980 to 2006, this article finds that both emulation from neighboring states and innovation within the state government increase the likelihood of statewide building regulations. Code adoption follows a hybrid diffusion pattern, whereby external and internal mechanisms occur simultaneously rather than independently from each other.