The name is absent

Research Category and
Study

Data Time &
Space
Aggregation

Data
Period

Major Relevant Findings, Conclusions

Schroeter

Annual, U.S.

1951-83

Modest monopoly, monopsony price distortions
in 28 of 33 years

Azzam and
Pagoulatos

Annual, U.S.

.............1959-82.........

Evidence of oligopoly, oligopsony behavior in
input and output markets

Extent of oligopsony exceeded that for oligopoly

Azzam and

Schroeter 1991

Annual,
Regional

....................1986................

Small price distortions from simulations of
increasing concentration in regional fed cattle
markets

Koontz, Garcia,
and Hudson

Daily, Regional

............1980-82,........
1984-86

Evidence of oligopsony behavior consistent with
trigger pricing strategies

Decreased oligopsony impact in the latter time
period

Stiegert, Azzam,
and Brorsen

Quarterly, U.S.

.............1972-86.........

Beefpackers follow average-cost pricing
Decreasing concentration will not likely improve
fed cattle prices

Azzam and

Schroeter 1995

Annual,
Regional

.............1986-88.........

Economies of size efficiencies more than offset
oligopsony price distortions for fed cattle
Structural changes have had a welfare-
enhancing effect

Weliwita and

Azzam

Quarterly, U.S.

.............1978-93.........

Declining demand not associated with increased
competitiveness of packers for fed cattle or beef
Oligopsony price distortions were found

Driscoll,
Kambhampaty,
and Purcell

Weekly,
Regional

.............1992-93.........

Plants and firms did not follow short-run profit-
maximizing behavior

Little evidence of oligopoly, oligopsony behavior

Muth and

Wohlgenant

Annual, U.S.

.............1967-93.........

Negligible oligopsony price distortion

Koontz and Garcia

Daily, Regional

............1980-82,........
1984-86

Evidence of multi-market oligopsony behavior
across geographic markets

Oligopsonistic behavior is not constant over time
or space

Schroeter, Azzam,
and Zhang

.....MonthlyTULS....................

.............1990-94.........

Evidence of oligopsonistic behavior by retail firms
Little evidence of oligopolistic behavior by
meatpacking firms

Paul

Monthly,
Regional

.............1992-93.........

Little evidence of oligopsony behavior by
beefpackers

Economies of size efficiencies more than offset
oligopsony price distortions for fed cattle