Non-convexities in the adjustment of different capital inputs: A firm-level investigation

Alessandra Del Boca, Marzio Galeotti () and Paola Rota

European Economic Review, 2008, vol. 52, issue 2, pages 315-337

Abstract: Recent developments in investment research have highlighted the importance of non-convexities and irreversibilities in firms' adjustment of quasi-fixed inputs. Aggregation across capital goods may smooth out the discontinuities associated with the adjustment of individual assets. Lack of suitable data is one of the reasons why empirical work has typically relied on the assumption of capital homogeneity. In this paper we exploit a data set of 1539 Italian firms which allows us to disaggregate capital into equipment and structures, and purchases and sales of assets. We construct measures of fundamental Q to capture investment opportunities associated with each asset. We uncover the pattern of dynamic adjustment by using non-parametric techniques to relate each individual investment to its own fundamental Q.

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Related works:
Working Paper: Non-convexities in the adjustment of different capital inputs: a firm-level investigation (2002)
Working Paper: Non-convexities in the Adjustment of Different Capital Inputs: A Firm-level Investigation (2003)
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