Estimating dynamic consumption of antibiotics using panel data: the shadow effect of bacterial resistance
To some extent, antibiotics are similar to addictive goods since current consumption is reinforced by past use because of bacterial resistance, which represents a growing concern in many countries. The purpose of this paper is to explore how consumers adjust their current level of antibiotic consumption towards desired levels over time. We construct a balanced panel dataset (2000-2007) for 20 Italian regions and estimate a dynamic model where antibiotic consumption depends upon demographic and socioeconomic characteristics of the population, the supply of health care in the community, antibiotic price, and the "capital stock" of endogenous bacterial resistance measured by past consumption. We apply alternative dynamic estimators for short panels: the bias-corrected least squares dummy variable (LSDVC) and the system Blundell-Bond GMM estimator (GMM-BB). The estimation results are stable across different model specifications and show that antibiotic use in previous periods has a positive impact on current antimicrobial consumption (between 0.14 and 0.39). This indicates that the process of adjustment to desired levels of consumption is relatively fast (approximately 1.2-1.6 years). Weak persistence in consumption may suggest that individuals are responsive to changes in antibiotic effectiveness.
|Date of creation:||Dec 2010|
|Date of revision:|
|Contact details of provider:|| Web page: https://www.bul.sbu.usi.ch|
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Salima Bouayad-Agha & Lionel Védrine, 2010. "Estimation Strategies for a Spatial Dynamic Panel using GMM. A New Approach to the Convergence Issue of European Regions," Spatial Economic Analysis, Taylor & Francis Journals, vol. 5(2), pages 205-227.
- Blundell, R. & Bond, S., 1995.
"Initial Conditions and Moment Restrictions in Dynamic Panel Data Models,"
104, Economics Group, Nuffield College, University of Oxford.
- Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
- Richard Blundell & Steve Bond, 1995. "Initial conditions and moment restrictions in dynamic panel data models," IFS Working Papers W95/17, Institute for Fiscal Studies.
- R Blundell & Steven Bond, . "Initial conditions and moment restrictions in dynamic panel data model," Economics Papers W14&104., Economics Group, Nuffield College, University of Oxford.
- Anderson, T. W. & Hsiao, Cheng, 1982. "Formulation and estimation of dynamic models using panel data," Journal of Econometrics, Elsevier, vol. 18(1), pages 47-82, January.
- Herrmann, Markus & Gaudet, Gérard, 2009.
"The economic dynamics of antibiotic efficacy under open access,"
Journal of Environmental Economics and Management,
Elsevier, vol. 57(3), pages 334-350, May.
- GAUDET, Gérard & HERRMANN, Markus, 2007. "The Economic Dynamics of Antibiotic Efficacy under Open Access," Cahiers de recherche 2007-04, Universite de Montreal, Departement de sciences economiques.
- GAUDET, Gérard & HERRMANN, Markus, 2007. "The Economic Dynamics of Antibiotic Efficacy under Open Access," Cahiers de recherche 04-2007, Centre interuniversitaire de recherche en économie quantitative, CIREQ.
- Rudholm, Niklas, 2002. "Economic implications of antibiotic resistance in a global economy," Journal of Health Economics, Elsevier, vol. 21(6), pages 1071-1083, November.
- Michael Beenstock & Daniel Felsenstein, 2007. "Spatial Vector Autoregressions," Spatial Economic Analysis, Taylor & Francis Journals, vol. 2(2), pages 167-196.
When requesting a correction, please mention this item's handle: RePEc:lug:wpaper:1011. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Alessio Tutino)
If references are entirely missing, you can add them using this form.