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Motivated by the 2006 report of a Work Group appointed by the Environmental Protection Agency (EPA), this paper examines the present state of meta-analysis in environmental economics and offers recommendations for its future use. To this end we summarize and assess 140 meta-analyses from 125 published and unpublished studies, covering 17 topical categories in environmental and resource economics. First, we provide several generic meta-analysis models as reference points and discuss major estimation issues. Five econometric issues are identified as part of a complete analysis: (1) sample selection criteria; (2) basic data summary; (3) primary data heterogeneity; (4) heteroskedasticity; and (5) non-independence of multiple observations from primary studies. Second, a tabular summary is presented for the 140 meta-analyses with respect to estimation methods. Third, a narrative summary is presented for 19 meta-analyses, including the three value-of-statistical-life studies examined by the EPA Work Group and one analysis from each of 16 other categories. Fourth, we offer a set of “best practice” guidelines for future meta-analyses in this and other areas of economics. Last, the paper comments on the use of meta-analytic methods for benefit transfers of environmental values.

Natural experiments are an important alternative to observational and econometric studies. This paper provides a review of results from empirical studies of alcohol policy interventions in five countries: Denmark, Finland, Hong Kong, Sweden, and Switzerland. Major policy changes were removal of quotas on travelers' taxfree imports and reductions in alcohol taxes. A total of 29 primary articles are reviewed, which contain 35 sets of results for alcohol consumption by various subpopulations and time periods. For each country, the review summarizes and examines: (1) history of tax/quota policy interventions and price changes; (2) graphical trends for alcohol consumption and liver disease mortality; and (3) empirical results for policy effects on alcohol consumption and drinking patterns. We also compare cross-country results for three select outcomes—binge drinking, alcohol consumption by youth and young adults, and heavy consumption by older adults. Overall, we find a lack of consistent results for consumption both within- and acrosscountries, with a general finding that alcohol tax interventions had selective, rather than broad, impacts on subpopulations and drinking patterns. Policy implications of these findings are discussed.

Background: This paper contributes to the evidence-base on prices and alcohol use by presenting meta-analytic summaries of price and income elasticities for alcohol beverages. The analysis improves on previous meta-analyses by correcting for outliers and publication bias. Methods: Adjusting for outliers is important to avoid assigning too much weight to studies with very small standard errors or large effect sizes. Trimmed samples are used for this purpose. Correcting for publication bias is important to avoid giving too much weight to studies that reflect selection by investigators or others involved with publication processes. Cumulative meta-analysis is proposed as a method to avoid or reduce publication bias, resulting in more robust estimates. The literature search obtained 182 primary studies for aggregate alcohol consumption, which exceeds the database used in previous reviews and meta-analyses. Results: For individual beverages, corrected price elasticities are smaller (less elastic) by 28-29 percent compared with consensus averages frequently used for alcohol beverages. The average price and income elasticities are: beer, -0.30 and 0.50; wine, -0.45 and 1.00; and spirits, -0.55 and 1.00. For total alcohol, the price elasticity is -0.50 and the income elasticity is 0.60. Conclusions: These new results imply that attempts to reduce alcohol consumption through price or tax increases will be less effective or more costly than previously claimed.

Background: Heavy episodic (\"binge\") drinking of alcohol has serious public health implications, especially for youth and young adults. Previous summaries and surveys have failed to address in a comprehensive manner the effects of alcohol prices on binge drinking by gender or age group. Methods: A qualitative systematic review is performed for effects of alcohol prices (or tax surrogates) on binge drinking for three age groups: youth, young adults, and adults. Outcomes examined include binge participation, intensity and frequency. Criteria for data collection and potential sources of bias are discussed, including adequacy of price data. Price-binge relationships are judged using a 95% confidence interval (p . 0.05) for statistical significance. Results: Fifty-six relevant econometric studies were found, with studies and results distributed equally among three age groups. Also found were five natural experiments for tax reductions and six field studies. Null results or mixed results are found in more than half of the studies. The body of evidence indicates that binge drinkers are not highly-responsive to increased prices. Non-responsiveness holds generally for younger and older drinkers and for male and female binge drinkers alike. A limitation of the current literature is that results are only available for higher-income countries. Conclusions: Increased alcohol taxes or prices are unlikely to be effective as a means to reduce binge drinking, regardless of gender or age group.

Meta-analysis is applied to the negative relationship between airport noise exposure and residential property values. The effect size in the analysis is the percentage depreciation per decibel increase in airport noise, or the noise discount. Twenty hedonic property value studies are analysed, covering 33 estimates of the noise discount for 23 airports in Canada and the United States. About one-third of the estimates have not been previously reported in the literature or were not included in previous meta-analyses. A meta-regression analysis examines the variability in the noise discounts that might be due to country, year, sample size, model specification, mean property value, data aggregation, or accessibility to airport employment and travel opportunities. The analysis indicates that country and model specification have some effect on the measured noise discount, but the other variables have little systematic effect.

This paper assesses the methodology employed in longitudinal studies of advertising and youth drinking and smoking behaviors. These studies often are given a causal interpretation in the psychology and public health literatures. Four issues are examined from the perspective of econometrics. First, specification and validation of empirical models. Second, empirical issues associated with measures of advertising receptivity and exposure. Third, potential endogeneity of receptivity and exposure variables. Fourth, sample selection bias in baseline and follow-up surveys. Longitudinal studies reviewed include 20 studies of youth drinking and 26 studies of youth smoking. Substantial shortcomings are found in the studies, which preclude a causal interpretation.

This paper conducts a meta-analysis of price and income elasticities for wine and distilled spirits, which correct for outliers and publication bias. The sample of wine elasticities is obtained from 104 primary studies, and the sample of spirits elasticities is obtained from 111 primary studies. Robust weighted-means and meta-regressions are reported that correct for outliers, heterogeneity, heteroskedasticity, dependence, and publication bias. Compared to unweighted averages previously reported in the literature, the analysis yields less-elastic demands for both price and income. Average price elasticities obtained using cumulative meta-analysis are −0.45 for wine and −0.55 for spirits. Average income elasticities are 1.0 for both beverages. Bias due to publication selectivity is important. Country-level differences also are noted for both wine and spirits. Policy implications are discussed for pricing and taxation of alcohol beverages. (JEL Classifications: Q11, C18, I12)

Hedonic prices are estimated for summer and winter rentals for vacation houses located near a lake and ski-golf resort in rural western Maryland. Regressions for weekly rents are conditioned on house size, quality, and recreation features including lakefront proximity and ski-slope access. Percentage effects and marginal implicit prices indicate that access to recreation is reflected importantly in rental offers. Evaluated at the means, lakefront locations command a premium of $1,100–1,200 per week, and the premium for ski-slope access is $500–600 per week. Unit recreation values are about $18 per person per day for a lakefront location with a private dock and $7 per person per day for a ski-slope location. There are small differences in the unit values for three real estate management agencies. Although there is evidence of spatial correlation in ordinary least squares residuals, estimation of spatial-lag and spatial-error models does not yield substantial changes in the empirical results.

Xuan et al offer several interpretive comments on my systematic review of binge drinking and alcohol prices, including comments concerning selection and interpretation of primary studies, alternative methodologies, and supporting literatures. Prior to addressing these issues, it is important to layout what has transpired in the addiction field as reflected in the editorial policies of the academic journal, Addiction, for which Professor Babor was Associate Editor-in-Chief. This provides context to faulty comments made by Xuan et al.

Using panel data for a cross-section of countries, several previous studies estimate the effect of advertising bans on cigarette consumption. These studies suffer from three problems: (1) structural change in cigarette demand functions; (2) endogeneity of advertising bans; and (3) non-stationarity of cigarette consumption data. Using annual data for 20 OECD countries, this study tests for unit roots. Growth rates of cigarette consumption (log differences) are stationary, but levels data are not. I estimate single-equation panel models for 1970-1995 and test formally for structural change. The tests and recursive coefficient estimates confirm a regime change beginning in 1985. Results for different time periods are reported for the effects of price, income, health warnings, country fixed-effects, and moderate and strong advertising bans. The study also considers the possibility of endogenous advertising bans. A public-choice model is estimated as a two-equation model of advertising legislation and cigarette demand. The adoption of advertising bans is modeled as a Poisson count regression, and fitted values for the number of banned media are used as instruments in the demand equation. The results in the paper fail to demonstrate that advertising bans reduce aggregate cigarette consumption. Empirical results in previous studies are not robust to use of stationary data; refinements in model specification; different time periods; and endogeneity of advertising bans. Due to a decline in smoking prevalence, especially among males, there was a change in the political climate in favor of stronger restrictions on cigarette advertising. Overall, advertising bans have had no effect on cigarette consumption, regardless of the time period considered or the severity of the bans.