Postdivestiture long-distance competition in the United States

Article Abstract:

Real prices of long-distance telephone service decreased by 50% between the breakup of the Bell system in 1984 and 1991, while demand for long-distance doubled. A statistical analysis reveals that the reduction in prices and increase in demand is due to the decrease in access charges paid by long-distance companies. Increased competition in long-distance telephone services has not lowered rates and has not increased the interstate toll market despite marketing efforts.

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The effects of the breakup of AT&T on telephone penetration in the United States

Article Abstract:

A mathematical model was used to analyze the effects of the breakup of AT&T on telephone penetration in the US. Results indicate that an increase in economic efficiency need not cause a decrease in penetration. In the 1980s, higher monthly access charges and reduced long-distance rates resulted in an increase in penetration. Action by state public utility commissions or the FCC to eliminate cross subsidies or lower long-distance rates can further increase efficiency.

Telecommunications services industry, Telecommunications industry

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Weak instruments: diagnosis and cures in empirical econometrics

Article Abstract:

The problem of weak instruments (WI) in econometrics is discussed. A specification test for WI with a caution against the use of unbiased estimators like limited information maximum livelihood (LIML) is discussed.

United States, Analysis, Economics, Econometrics, Economic theory

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