Siebert, Ralph, WZB Bulletin, vol. 47, pp. 34-36. International Research Joint Ventures.

Siebert, Ralph (2007). Market Power versus Efficiency Effects of Mergers and Research Joint Ventures: Evidence from the Semiconductor Industry (with Klaus Gugler). Review of Economics and Statistics, Vol. 89, Issue 4, pp. 645-659 , .
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Siebert, Ralph (2007). Why Firms Form (or don't Form) RJVs (with Lars-Hendrik Röller & Mihkel Tombak). Economic Journal, July, Vol. 117, No. 522, pp. 1122-1144, .
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Siebert, Ralph. Learning by Doing and Multiproduction Effects over the Life Cycle: Evidence from the Semiconductor Industry, Revise and Resubmit.
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Siebert, Ralph. The Introduction of New Product Qualities by Incumbent Firms: Market Proliferation versus Cannibalization, Revise and Resubmit.

Siebert, Ralph. Jostling for Advantage: Licensing and Entry into Patent Portfolio (with Georg von Graevenitz), Revise and Resubmit.
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Siebert, Ralph. The Impact of Market Demand and Innovation on Market Structure (with Christine Zulehner).

Siebert, Ralph. Determinants of Declining Prices in Memory Industries: Market Efficiency versus Market Structure (with Christine Zulehner).

Siebert, Ralph. Does Licensing Resolve Hold Up in the Patent Thicket? (with Georg von Graevenitz), Under Review.
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Siebert, Ralph. The Effect of Information Revelation Policies in Sequential Private Value Auctions (with Karthik Kannan), Under Revision.
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Siebert, Ralph. Preempting Innovation by Incumbent Firms, Under Revision.

Siebert, Ralph. The Impact of R&D Subsidies on the Introduction of New Products by Incumbent Firms.