The Quality-Complementarity Hypothesis: Theory and New Evidence from Colombia

Maurice Kugler () and Eric Verhoogen ()

No 183, CID Working Papers from Center for International Development at Harvard University

Abstract: This paper presents a tractable formalization and an empirical investigation of the quality-complementarity hypothesis, the hypothesis that input quality and plant productivity are complementary in generating output quality. We embed this complementarity in a general-equilibrium trade model with heterogeneous, monopolistically competitive firms, extending Melitz (2003), and show that it generates distinctive implications for two simple, observable within-sector correlations — between output prices and plant size and between input prices and plant size — and for how those correlations vary across sectors. Using uniquely rich and representative data on the unit values of outputs and inputs of Colombian manufacturing plants, we then document three facts: (1) output prices are positively correlated with plant size within industries on average; (2) input prices are positively correlated with plant size within industries on average; and (3) both correlations are more positive in industries with more scope for quality differentiation, as measured by the advertising and R&D intensity of U.S. industries. The correlations between export status and input and output prices are similar to those for plant size. We present additional evidence that market power of either final-good producers or input suppliers do not fully explain the empirical patterns we observe. These findings are consistent with the predictions of our model and difficult to reconcile with alternative models that impose symmetry or homogeneity of either inputs or outputs. We interpret the results as broadly supportive of the quality-complementarity hypothesis.

Keywords: Quality Upgrading; Plant Capability; Exports (search for similar items in EconPapers)
JEL-codes: F10 O30 (search for similar items in EconPapers)
Date: 2008-09
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (14)

Downloads: (external link)
https://www.hks.harvard.edu/sites/default/files/ce ... rking-papers/183.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:cid:wpfacu:183

Access Statistics for this paper

More papers in CID Working Papers from Center for International Development at Harvard University 79 John F. Kennedy Street. Contact information at EDIRC.
Bibliographic data for series maintained by Chuck McKenney ().