Page:  of 290
 
CHAPTER 5
ELECTRIC RAILWAYS 112
All Electric Railways 113
Interurban Electric Railways 113
Urban Electric Railways 121
6 PIPELINES 123
7 WATERWAYS 127
Waterways in 1939 127
The Growth of Waterway Traffic 135
Employment and Productivity 148
The Amount of Equipment 150
8 AIRLINES 153
APPENDICES
A ON THE MEASUREMENT OF THE PHYSICAL OUTPUT OF
PUBLIC UTILITIES 		163
Concepts 163
Units 165
Value as a Common Denominator 168
The Logic of the Value Concept 171
The Characteristics of Market Valuation 172
The Combination of Industries 180
B STEAM RAILROADS: BASIC SERIES 183
C STEAM RAILROADS: HOW WOULD A WEIGHTED
TON-MILE INDEX BEHAVE? 		191
Can We Measure the Bias in a Weighted Index of Tons
Originated? 		192
The Bias in an Unweighted Index of Ton-Miles 194
D ELECTRIC RAILWAYS: BASIC SERIES 215
E HIGHWAYS -- BUSLINES, CITY AND INTERCITY:
BASIC SERIES 		219
F HIGHWAYS -- THE MOTOR TRUCKING INDUSTRY 221
Structure of the Industry 221
The Number of Trucks 225
The Output of Intercity Motor Trucking in 1940 229
Characteristics of Truck Traffic 232
The Growth of Intercity Motor Trucking 237
Relation of Output to Employment 244
G OIL PIPELINES: BASIC SERIES 249
H WATERWAYS: BASIC SERIES 253
I AIRLINES: BASIC SERIES 265
INDEX 267

-xii-

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Publication Information: Book Title: The Transportation Industries, 1889-1946: A Study of Output, Employment, and Productivity. Contributors: Harold Barger - author. Publisher: National Bureau of Economic Research. Place of Publication: New York. Publication Year: 1951. Page Number: xii.
    
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