Columbia subject headings:
Infrastructure (Economics)--Germany (West)--Econometric models.
Inland water transportation--Germany (West)--Finance--Econometric models.
Input-output analysis--Germany (West)
Production functions (Economic theory)
Railroads--Germany (West)--Finance--Econometric models.
Roads--Germany (West)--Finance--Econometric models.
Harvard subject headings:
Infrastructure (Economics)--Germany (West)--Econometric models.
Inland water transportation--Germany (West)--Finance--Econometric models.
Input-output analysis--Germany (West)
Production functions (Economic theory)
Railroads--Germany (West)--Finance--Econometric models.
Roads--Germany (West)--Finance--Econometric models.
Princeton subject headings:
Replacement of industrial equipment--Accounting.
Transportation--Germany (West)--Finance.