Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/24743 
Erscheinungsjahr: 
2008
Schriftenreihe/Nr.: 
ZEW Discussion Papers No. 08-047
Verlag: 
Zentrum für Europäische Wirtschaftsforschung (ZEW), Mannheim
Zusammenfassung: 
This study tests for financial constraints on R&D investment and how they differ from capital investment. To identify constraints in the access to external capital, we employ a credit rating index. Our models show that internal constraints, measured by mark-ups, are more decisive for R&D than for capital investment. For external constraints, we find a monotonic relationship between the level of constriction and firm size for both types of investment. Thus, external constraints turn out to be more binding with decreasing firm size. On the contrary, we do not find such monotonic relationships for internal constraints. Differentiation by firms? age does not support lower constraints for older firms.
Schlagwörter: 
R&D Investment
Capital Investment
Financial Constraints
Panel Data
Censored Regression Models
JEL: 
O31
O32
Dokumentart: 
Working Paper

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