Making Consumers Comfortable: The Early Decades of Air Conditioning in the United States
研究了美国空调行业前四十年商业舒适空调系统的扩散，发现电价、消费者收入和受教育水平是早期采用的相关因素，对理解技术扩散和商业决策有帮助。
During the air conditioner industry's first four decades, most installations were “commercial comfort” air conditioning systems, purchased by retailers to increase demand for their products. Air conditioning spread unevenly through the commercial sector and across the country. Using data from a variety of sources, I offer a quantitative account of this diffusion, viewed through an interpretive framework that emphasizes differences across geographic markets and industries in the costs and benefits to retailers of installing air conditioning. Correlates of early adoption of commercial air conditioning include electricity rates and consumer income and education levels.