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NBER Working Papers and Publications
|1984||The R&D and Investment Decision and Its Relationship to the Firm's Market Value: Some Preliminary Results|
in R&D, Patents, and Productivity, Zvi Griliches, editor
|1975||On the Theory of Productive Saving|
with Isaac Ehrlich: w0071
The central thesis of this paper is that the management of portfolios incorporating a variety of investment assets does require the use of time and other scarce resources in searching for, collecting, interpreting, and applying relevant information. Accordingly, the returns on these assets would depend, in part, on managerial efforts and abilities and other related inputs. The plan of the paper is as follows. A life cycle model of consumption and productive saving without borrowing is developed in Section I. Borrowing is introduced into the model and its relationship to productive saving is explored in Section II. In Section III we attempt to elucidate the model's implications concerning capital accumulation paths and life cycle variations in resource allocations to productive activities. ...
Published: Ehrlich, Isaac & Ben-Zion, Uri, 1976. "Asset Management, Allocation of Time, and Returns to Saving," Economic Inquiry, Oxford University Press, vol. 14(4), pages 558-86, December.