NATIONAL LABOR RELATIONS BOARD

246 THIRD ANNUAL REPORT OF NATIONAL LABOR RELATIONS BOARD
spread of its sources of raw materials and its market for products,
of its methods of marketing its products, and of other special characteristics
of the industry which would influence the effect of internal
labor strife upon interstate commerce. Variations in this pattern
were made appropriate to the industry studied.
Illustrative was the evidence gathered for the motion-picture production
cases. The Division made an intensive study of the character
of the motion picture industry in all aspects relevant to the
question of interstate commerce. Over 100 exhibits were prepared by
the Division and were introduced into the record. Together with the
testimony of the Chief Economist, they indicated : (1) The concentration
of American film production in Los Angeles County, Calif.; (2)
the nation-wide and world-wide distribution of American films; (3)
the high degree of integration in production, distribution, and, to a
lesser extent, exhibition, characteristic of the larger units in the
industry; (4) the extent to which production involves work in more
than one State and in foreign countries ; and (5) the effect of a
scenario writers' strike upon production as indicated by the strategic
position of the writers in the industry.
Similar treatment was given to banking in the Bank of America
case, in which evidence was prepared and introduced on the following
points : (1) The historical evolution of the modern economy based
on banking and credit; (2) the functions of banking, including receipt
of deposits, the expeditious transfer of funds, the granting of
credits, the making of investments, and other auxiliary functions;
(3) the instrumentalities of commerce used in the performance of
the above functions, such as securities markets, foreign-exchange
markets, the 12 Federal Reserve banks and their branches, correspondent
banks, and the like; (4) the importance • of bank checks in
the consummation of commercial transactions; (5) the interdependence
of banking and large-scale business and industry in an economy
based on specialized production and the division of labor ; and (6)
the history of office workers' unions, and the effect on commerce of
a strike of this class of employees.
As the field of the Board's jurisdiction becomes clearer, more attention
is being given in the Division's work to the operations of the
respondent itself 7 and to its place and relative importance within its
industry. In an increasing proportion of the cases, jurisdiction in the
industry having been previously established, the Division's jurisdictional
studies were limited to the respondent. This type of material
is as varied as the nature of the enterprises. The more typical kinds
of information relate to corporate affiliations, to ownership of properties,
conduct of operations, or maintenance of offices in more than
one State2 and to interstate transportation upon which the respondent
depends in the operation of his enterprise. Examples of the many
more specialized types of information about the respondent's business
are : A newspaper's solicitation of national advertising; the practice
of a shipbuilding company of giving its products an interstate "trial
run" before delivery; the respondent's own assertion in a proceeding
before another governmental body that its operations affect interstate
commerce.
Careful study of the nature of the respondent's business is especially
important in the service and public utility industries. In these
fields, the operations of an individual enterprise, regardless of the