期刊名称：Discussion Papers / Norwegian School of Economics and Business Administration
印刷版ISSN：0804-6824
出版年度：2002
卷号：2002
出版社：Bergen
摘要：We analyse competition between two firms (ISPs) in the retail market for broadband access. One of the firms is
vertically integrated and controls the input market for local access. The vertically integrated firm undertakes an
investment that increases the quality of the input (upgrading to broadband). The retailers’ ability to offer value-
added services when the input quality is improved differs. We analyse the effect of an access price regulation
that is set after the investment. The access price regulation may have negative effects on investment incentives,
and we show that the total effect on consumer surplus and welfare depends on which firm has the highest ability
to offer value-added services.
