According to Porter’s model, four competitive forces determine industry profitability. True False

The bargaining power of customers is one of the competitive forces identified by Porter.   True False

Some competitive advantages are less sustainable than others.   True False

E-Commerce is the buying and selling of goods and services over private computer networks True False

Merchant companies are defined by the U.S. Census Bureau as those that arrange for the purchase and sale of goods without ever owning or taking title to those goods True False

In B2B e-commerce, sales are made between companies.   True False

A web storefront would be an example of a B2B model for e-commerce True False

Amazon.com, the book seller, would be an example of a B2C model for e-commerce.     True False

E-commerce leads to disintermediation.     True False

Disintermediation is the elimination of middle layers in the supply chain True False