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Table 5 The impact of agglomeration economies on various hospital input prices (t stats are reported in parentheses using robust standard errors)

From: The impact of agglomeration economies on hospital input prices

Type of intermediate medical service (CPT code)

General health panel (80050)

Electrolyte panel (80051)

Lipid panel (80061)

Hepatic function panel (80076)

 

(1)

(2)

(3)

(4)

Total Number of Hospital Beds (100 s)

3.179***

0.541***

0.804***

0.567***

 

(3.22)

(2.75)

(2.86)

(2.75)

Medical Lab Employment (100 s)

−1.078***

−1.830***

−2.663***

−1.900***

 

(-3.26)

(-2.97)

(-3.02)

(-2.95)

Population Density (1,000 s per Square Mile)

0.621

0.275**

0.434***

0.290***

 

(1.21)

(2.43)

(3.14)

(2.70)

Area (1,000 s of Square Miles)

−1.173*

−0.139

−0.191

−0.075

 

(-1.93)

(-1.12)

(-1.11)

(-0.57)

Average Hospital Size (100 s of Beds)

−6.315***

−1.273**

−2.104***

−1.446***

 

(-2.58)

(-2.44)

(-3.06)

(-2.87)

Demographic Controlsa

YES

YES

YES

YES

Year Trend

YES

YES

YES

YES

Region FE

YES

YES

YES

YES

Year Trend × Region FE

YES

YES

YES

YES

No. of Observations

6297

5873

6373

6304

Root MSE

49.981

11.043

15.063

10.801

First-stage F-statistics

12.474

13.471

12.270

11.973

Wooldridge Robust Score Test

65.901

20.759

25.741

22.299

  1. aOther control variables include county-level measure of % of uninsured, % of > 65 years old, per capita income, % Non-white, and % of < high school. Statistical significance at the 1, 5 and 10 percent levels are denoted with ***, **, and * respectively