E-Commerce: Measurement and Measurement Issues
讨论美国电子商务规模与影响测度面临的独特挑战，以及与传统经济测度问题的异同，对研究数字经济测度的学者有参考价值。
E-commerce is a hot topic; however, little is known about the actual size and impact of ecommerce in the United States. In part this is because e-commerce is a recent and rapidly evolving phenomenon, but it is also because the measurement of e-commerce presents a number of challenges. Some of these challenges are essentially unique. Others are similar to, or extensions of, old economy measurement challenges.