"c           VAR 0128      03008 SHORTAG 3R 907-930               MD= 1E-37   "
"c           REF 0128         LOC 1113 WIDTH  9             DK  18 COL 44-52  "
"c                                                                            "
"c                                                                            "
"c              FREIGHT CAR SHORTAGE                                          "
"c              --------------------                                          "
"c                                                                            "
"c              NBER SERIES:  03008                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  NUMBER OF FREIGHT CARS                                "
"c              ANNUAL COVERAGE:  NONE                                        "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  05/1907-09/1914; 02-12/1915;               "
"c              01/1918-12/1930                                               "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  DATA FOR 1907-1917:  AMERICAN RAILWAY ASSOCIATION,   "
"c             "UNFILLED CAR REQUISITIONS", BULLETIN NO. 6, AUGUST 17,        "
"c              1917; QUARTERLY JOURNAL OF ECONOMICS, VOL. 33, P. 179.  DATA  "
"c              FOR 1918-1924:  ARA ANNUAL BULLETINS.  DATA FOR 1920-1930:    "
"c              U.S. DEPARTMENT OF COMMERCE, SURVEY OF CURRENT BUSINESS, MAY  "
"c              1922, AUGUST 1924, DECEMBER 1931.                             "
"c                                                                            "
"c              NOTES:  SERIES 03008 IS PRESENTED HERE AS TWO                 "
"c              VARIABLES--(1)--ORIGINAL DATA, 1907-1930  (2)--ORIGINAL DATA, "
"c              1915-1917.                                                    "
"c                   DATA INCLUDE ALL CAR REQUISITIONS INCLUDING              "
"c              DUPLICATION, THEREFORE"REQUISITIONS" IS POSSIBLY A BETTER     "
"c              TERM THAN"SHORTAGES".  FOR EXAMPLE A SHIPPER MIGHT REQUEST    "
"c              25 CARS FROM FOUR LINES, HOWEVER, ONLY NEEDING 25. THIS DATA  "
"c              WOULD SHOW A 100 CAR"SHORTAGE" IN THIS EXAMPLE.               "
"c                   THE RAILROADS INCLUDED IN THESE REPORTS ARE THE SAME     "
"c              THROUGHOUT, EXCEPT THAT THE ACTUAL NUMBER OF ROADS DECREASED  "
"c              DUE TO CONSOLIDATION FROM ABOUT 175 TO 118.  DATA THROUGHOUT  "
"c              ARE COMPARABLE.                                               "
"c                   DATA FOR 1915 ARE BASED ON END-OF-MONTH FIGURES.  DATA   "
"c              ARE CONVERTED TO MIDDLE-OF-MONTH BY TAKING TWO MONTH MOVING   "
"c              AVERAGES.                                                     "
"c                                                                            "
"c              CHECKED MANUALLY; CORRECTED 1/15/94.                          "
"c                                                                            "
"c           ...............................................................  "