“Illegal spam earns only $200 million per year while some $20 billion is spent fending it off, 100 to 1 cost to benefit ratio. The Economics of spam, justin Rao and David Reily, Journal of Economic perspectives, Summer 2012”
“Illegal spam earns only $200 million per year while some $20 billion is spent fending it off, 100 to 1 cost to benefit ratio. The Economics of spam, justin Rao and David Reily, Journal of Economic perspectives, Summer 2012”
