Measuring e-commerce is difficult
Little official statistics on e-commerce
core indicators of the Partnership on Measuring ICTAD
orders received or placed by enterprises (UNCTAD)
orders placed by individuals in a household (ITu) over the Internet
Do not measure value of transactions
Do not capture domestic vs international dimension
Do not consider impacts of e-commerce
Private data sources
varying, opaque methodologies
Limited geographical coverage, focus on developed countries
Expensive to use