Text ( visual ) : unmediated Aggregate advertising expenditure in the U.S. economy : measurement and growth issues in the digital era / Alvin J. Silk, Ernst R. Berndt. -- Boston : now Publishers , c2021. -- 88 p. : ill. ; 24 cm. -- (Foundations and trends [R] in marketing ; 15:1). -- Includes bibliographical references (p. 77-88). -- ISBN 9781680838725 ; (BC1035550X) ; https://ci.nii.ac.jp/ncid/BC1035550X Author Heading(s): Silk, Alvin J. ; Berndt, Ernst R.. -- Classification(s): DC23 : 338.4365910973. -- Subject Heading(s): LCSH : Advertising -- Economic aspects -- United States ; LCSH : Advertising -- United States -- Costs