Measuring the Income Elasticity of Water Demand: The Importance of Publication and Endogeneity Biases
| Autor: | prof. PhDr. Tomáš Havránek Ph.D., Tomáš Vlach doc. PhDr. Zuzana Havránková Ph.D., Tomáš Vlach |
|---|---|
| Typ: | IES Working Papers |
| Rok: | 2017 |
| Číslo: | 2 |
| ISSN / ISBN: | |
| Publikováno v: | IES Working Papers 02/2017 |
| Místo vydání: | Prague |
| Klíčová slova: | Water demand, income elasticity, meta-analysis, publication bias, Bayesian model averaging |
| JEL kódy: | C83, Q25 |
| Citace: | Havranek T., Irsova Z., Vlach T.(2017). ”Measuring the Income Elasticity of Water Demand: The Importance of Publication and Endogeneity Biases” IES Working Paper 2/2017. IES FSV. Charles University. |
| Granty: | GACR 15-02411S Development and Applications of Meta-Regression Methods in Economics |
| Abstrakt: | We present the first meta-analysis of the income elasticity of water demand that accounts for the effects of publication selection (the preferential reporting of estimates that are in- tuitive and statistically significant). Paradoxically, more affected by publication selection are the otherwise preferable estimates that control for endogeneity. Because such estimates tend to be smaller and less precise, they are often statistically insignificant, which leads to more intense specification searching and bias. Correcting simultaneously for publication and endogeneity biases, we find that the underlying elasticity is approximately 0.15 or less. The result is robust to controlling for 30 other characteristics of the estimates and using Bayesian model averaging to account for model uncertainty. The differences in the reported estimates are systematically driven by differences in the tariff structure, regional coverage, data granularity, and control for temperature in the demand equation. |
| Ke stažení: |
wp_2017_02_havranek_irsova |
