摘要:The measurement of nontariff barriers to trade in services, and the gains associated with removing
such barriers, has been of keen interest for the past several years. This is due in part to the ongoing Doha
Round negotiations in the WTO, where services liberalization is part of the built-in agenda, and in part to
growing recognition of the prominence of the service sector in overall economic activity. The following facts
justify such interest:
. The service sector typically accounts for between 60 percent and 80 percent of gross domestic
product (GDP) in developed and developing countries alike, and represents approximately the
same share of private sector employment.