Study week on the econometric approach to development planning

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Monograph

Identifikator:: 1746729937

URN:: urn:nbn:de:zbw-retromon-119900

Document type:: Monograph

Author:: Földes, Béla http://d-nb.info/gnd/119338211

Title:: Finanzwissenschaft

Edition:: 2., neubearbeitete Auflage

Place of publication:: Jena

Publisher:: G. Fischer

Year of publication:: 1927

Scope:: XIV, 683 S.

Digitisation:: 2021

Collection:: Economics Books

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Document type:: Monograph

Structure type:: Chapter

Title:: Viertes Buch. Die Staatseinnahmen

Collection:: Economics Books

1030 PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28 HAAVELMO I would first like to say that I am sure Prof. ISARD is right in underlining the importance of the kind of problem here mentioned and that also very little has been done about it. Now, the remark I have refers to Prof. IsarD’s special model of interaction, and is based on a recent experience I have had. One of my students came to me because he was engaged in some study of retail trade in a regional network of shopping centers. Some of these centers were small and some larger, and the problem was how to locate stores, parking space etc. We got into discussion about the following pro- blem. Consider the interaction formula that you have. In my case it can be regarded as representing how many customers are drawn from 7 to j and vice versa. We found that the symmetry of this interaction formula was not adequate. We have a passive element, so to speak, and have to distinguish between the active pull and the response. We did not find the final answer, but I think it is a general problem relevant also to your model. [SARD I agree that many, if not most situations in the real world involve asymmetry. Many suggestions have been made about what the measure could be in such cases. For any originating node (region) the measure will differ according to type of receiving or terminating point (node). Also, I have presented in my paper a regular hierarchy. Actually, we know that nodes are differently distributed, and that population is of different density in different regions and at different nodes. But to introduce an irregular hierarchy causes all kinds of problems. I do not have the time now to spell out some of the interesting thinking on these problems. ‘127 Isard - pag. 28

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