Does Market Concentration Promote or Reduce New Product Introductions? Evidence from US Food Industry



Table 6. Mergers Regressions

A. Aggregate Mergers Analysis (OLS estimates)

(1)

(2)

(3)

(4)

MERGERS

MERGERS

MERGERS

MERGERS

NPILAG3

0.015

0.016

(4.95)**j

(4.88)***

NPILAG4

0.013

0.018

(4.24)***

(5.70)***

Usmergers

-0.002

-0.008

(0.78)

(2.57)**

NLAG3

N LAG 4

SGRLAG3

SGRLAG4

CONSTANT

-19.370

0.549

-14.565

-9.111

(0.49)

(0.01)

(0.36)

(0.27)

Elasticity

1.113

. 997

1.168

1.334

(4.83)**j

'    (4.15)***

(4.76)***

(5.55)***

Observations

14

14

14

14

R-squared

0.67

0.60

0.69

0.75

Breusch-Godfrey test

for autocorrelation

(HO: no seri

al correlation)

LM stats

1.615

4.997

1.250

0.891

p-value

0.2038

0.0254

0.2635

0.3451

(5)

MERGERS

(6)

MERGERS

(7)

MERGERS

(8)

MERGERS

0.015

0.013

(4.44)***

0.016

(4.61)***

0.012

(5.60)***

(3.99)***

-0.054

(0.14)

-0.828

(2.44)**

2.642

(1.92)*

3.403

(1.44)

-12.713

100.597

-9.236

-4.684

(0.20)

(1.88)*

(0.26)

(0.12)

1.126

1.215

. 986

. 921

(4.35)***

(5.46)***

(4.53)***

(3.92)***

14

14

14

14

0.67

0.74

0.75

0.66

1.541

1.410

0.680

3.682

0.2144

0.2350

0.4096

0.0550



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