This file is part of IDEAS, which uses RePEc data


[ Papers | Articles | Software | Books | Chapters | Authors | Institutions | JEL Classification | NEP reports | Search | New papers by email | Author registration | Rankings | Volunteers | FAQ | Blog | Help! ]

Multiproduct Competition, Learning by Doing and Price-Cost Margins over the Product Life Cycle: Evidence from the DRAM Industry

Author info | Abstract | Publisher info | Download info | Related research | Statistics
Author Info
Ralph Siebert

Additional information is available for the following registered author(s):

Abstract

In this study we specify and estimate a structural model of multiproduct firms for the semiconductor industry. In addition, we explicitly consider dynamics over the product life cycle. We find that these two aspects have important implications and provide evidence that (i) Spillover and Economies of Scale effects are lower for multiproduct firms than for single product firms, whereas Learning by Doing effects are slightly higher. We also find that firms follow an intertemporal output strategy. Furthermore, we provide evidence that, once multiproduct firms are introduced, firms behave as if in perfect competition. A single product specification leads to firms behaving even "softer" than Cournot players in the product market. We show that (ii) Learning by Doing, Economies of Scale, and Spillover effects vary over the product cycle. Learning by Doing effects are higher at the end of the life cycle when new production technologies are developed. Economies of Scale are increasing and become smaller (larger) over the life cycle for multiproduct (single product) firms. We specify a dynamic theoretical model and estimate a dynamic structural model by using quarterly firm-level output and costs data as well as industry prices for the Dynamic Random Access Memory (DRAM) industry from 1974 to 1996.

ZUSAMMENFASSUNG - (Mehrproduktwettbewerb, Learning by Doing und Price-Cost Margins über den Produktlebenszyklus: Beweis aus der DRAM Industrie)
In dieser Studie spezifizieren und schätzen wir ein strukturelles Modell von Mehrproduktunternehmen in der Halbleiterindustrie. Zusätzlich berücksichtigen wir explizit die Dynamik über den Produktlebenszyklus. Unsere Ergebnisse zeigen, daß diese beiden Aspekte gravierende Auswirkungen besitzen. Wir zeigen, daß (i) Spillovers und Skalenerträge für Mehrproduktunternehmen geringer sind als für Einzelproduktunternehmen, wogegen Lerneffekte geringfügig größer ausfallen. Unsere Ergebnisse bestätigen auch, daß Unternehmen eine intertemporale Outputstrategie verfolgen. Weiterhin wird gezeigt, daß sich Mehrproduktunternehmen im perfekten Wettbewerb befinden, wobei sich Einzelproduktunternehmen ähnlich wie Cournot Spieler verhalten. Wir zeigen, daß (ii) Lerneffekte, Skalenerträge und Spillovereffekte über den Produktlebenszyklus variieren. Lerneffekte sind am Ende des Produktlebenszyklus größer, wenn neue Produkttechnologien entwickelt werden. Skalenerträge sind zunehmend und nehmen für Mehrproduktunternehmen (Einzelproduktunternehmen) im Ausmaß zum Ende des Produktlebenszyklus ab (zu). Wir spezifizieren ein dynamisches theoretisches Modell und schätzen ein dynamisches strukturelles Modell unter Verwendung von vierteljährlichen Output- und Kostendaten auf Unternehmensebene, von der .Dynamic Random Access Memory. (DRAM) Industrie für den Zeitraum von 1974 bis 1996.

Download Info
To download:

If you experience problems downloading a file, check if you have the proper application to view it first. Information about this may be contained in the File-Format links below. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://skylla.wz-berlin.de/pdf/1999/iv99-21.pdf
File Format: application/pdf
File Function:
Download Restriction: no

Publisher Info
Paper provided by Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG) in its series CIG Working Papers with number FS IV 99-21.

Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Length: 44 pages
Date of creation: Oct 1999
Date of revision:
Handle: RePEc:wzb:wzebiv:fsiv99-21

Contact details of provider:
Postal: Reichpietschufer 50, 10785 Berlin, Germany
Phone: (++49)(30) 25491-441
Fax: (++49)(30) 25491-442
Web page: http://www.wzb.eu/mp/wiw/default.en.htm
More information through EDIRC

For technical questions regarding this item, or to correct its listing, contact: (Jennifer Rontganger).

Related research
Keywords: Multiproduct Competition; Learning by Doing; Product Life Cycle; Economies of Scale; Spillovers; Semiconductor; Process Innovation;

Find related papers by JEL classification:
C1 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General
L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
L6 - Industrial Organization - - Industry Studies: Manufacturing
O3 - Economic Development, Technological Change, and Growth - - Technological Change

Statistics
Access and download statistics

Did you know? Want to help out with this project? Look for volunteer opportunities.

This page was last updated on 2009-11-19.


This information is provided to you by IDEAS at the Department of Economics, College of Liberal Arts and Sciences, University of Connecticut using RePEc data on a server sponsored by the Society for Economic Dynamics.