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Vertical disintegration and spatial co-localization: The case of Kibs in the metropolitan region of Milan

Antonietti, Roberto; Cainelli, Giulio; Lupi, Claudio - In: Economics Letters 118 (2013) 2, pp. 360-363

This paper explores the relation between vertical disintegration and the co-localization of knowledge intensive business service (Kibs) firms in the metropolitan region of Milan, using micro-geographic data and nonparametric methods. Our main results are that: (i) compared to other manufacturing...

Persistent link: https://www.econbiz.de/10011041599

Identification in models of gasoline pricing

Bachmeier, Lance - In: Economics Letters 120 (2013) 1, pp. 71-73

identification of impulse response functions by applying a Cholesky decomposition (see, e.g., Kilian (2010)). Our results have …

Persistent link: https://www.econbiz.de/10010665697

The impact of ECB and FED announcements on the Euro interest rates

Monticini, Andrea; Peel, David; Vaciago, Giacomo - In: Economics Letters 113 (2011) 2, pp. 139-142

We investigate the impact of news in the ECB and FED monetary policy announcements on daily changes in Euro interest rates. We document significant impacts of ECB announcements throughout the period but only until mid 2004 of FED announcements.

Persistent link: https://www.econbiz.de/10011041569

The treatment effect, the cross difference, and the interaction term in nonlinear “difference-in-differences” models

Puhani, Patrick A. - In: Economics Letters 115 (2012) 1, pp. 85-87

In any nonlinear “difference-in-differences” model with strictly monotonic transformation function, the treatment effect is the cross difference of the observed outcome minus the cross difference of the potential non-treatment outcome, which equals the incremental effect of the interaction...

Persistent link: https://www.econbiz.de/10011041630

A note on the effect of education on religiosity

Javier Arias-Vazquez, F. - In: Economics Letters 117 (2012) 3, pp. 895-897

effect of education on religiosity using two alternative data sources and complementary identification strategies. My …

Persistent link: https://www.econbiz.de/10010594102

On the expenditure-dependence of children’s resource shares

Menon, Martina; Pendakur, Krishna; Perali, Federico - In: Economics Letters 117 (2012) 3, pp. 739-742

shares do not depend on total household expenditure, then identification of resource shares may proceed from commonly … expenditure. Thus, identification of resource shares on the basis of this restriction may be valid. …

Persistent link: https://www.econbiz.de/10010594114

A novel approach to identifying hedonic demand parameters

Kuminoff, Nicolai V.; Pope, Jaren C. - In: Economics Letters 116 (2012) 3, pp. 374-376

This note presents a new solution to the classic problem with using hedonic price functions to recover demand curves. Unexpected changes in the composition of a differentiated product can generate instruments that support a simple reduced-form approach to demand estimation.

Persistent link: https://www.econbiz.de/10010594119

Lagged duration dependence in mixed proportional hazard models

Picchio, Matteo - In: Economics Letters 115 (2012) 1, pp. 108-110

We study the identification of a mixed proportional hazard model with lagged duration dependence when data provide …

Persistent link: https://www.econbiz.de/10010572188

Inconsistency of 2SLS estimators in threshold regression with endogeneity

Yu, Ping - In: Economics Letters 120 (2013) 3, pp. 532-536

This paper shows the inconsistency of three forms of 2SLS estimators to illustrate the specialty of the endogeneity problem in threshold regression.

Persistent link: https://www.econbiz.de/10010681758