Abstract
This study examines economic performance, environmental performance, and regulatory activity for plants in three industries: pulp and paper, oil, and steel. Stochastic frontier production function models show significant deviations from production efficiency. Older plants are less efficient in production, but perform no worse on emissions. Plants spending more on pollution abatement tend to do worse on both production efficiency and emissions. Stricter local regulatory pressure is associated with somewhat lower emissions, but has mixed effects on production efficiency. Positive correlations between SUR residuals for emissions and production efficiency suggest unmeasured plant-level characteristics that drive both economic and environmental performance.
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Notes
Regulatory pressures can be related to plant closings, as shown by Deily and Gray (1991) for the steel industry in the early1980s, but there were fewer closings in our industries during the current period.
Shadbegian and Gray (2005) used annual data on abatement costs for detailed inputs (not available for the 1990s) to make such adjustments to production function estimation.
It is also possible to decompose TE into two parts (1) pure technical inefficiency (i.e., not producing on the isoquant) and (2) deviations from constant returns to scale (i.e., producing under diminishing or increasing returns). By assuming constant returns, Farrell excluded the second part from his calculations.
In the two-stage estimation procedure, the first stage estimates the efficiency effects assuming they are independently distributed, while the second stage models them as a function of the plant’s characteristics (so the efficiencies for any two observations of the same plant would be correlated). Jointly estimating both stages is more efficient and removes this inconsistency in assumptions.
Note that FRONTIER estimates inefficiency measures (1/TE), not efficiency measures.
4-digit SIC deflators discussed in Bartelsman and Gray (1996) were used to put nominal values into real terms.
We categorize each plant’s technology based on information from their respective industry directories: Lockwood-Post Pulp and Paper Directory; Oil and Gas Journal; and Directory of Iron and Steel Plants.
DIRTY TECH for oil refineries is mostly connected to air pollution, but for consistency we include it in the water pollution models as well.
We would like to thank John Haltiwanger for providing the plant age information. In our analysis we used a single dummy to measure plant age (OLD = open before 1972) for two reasons: our sample includes some very old plants, likely to heavily influence any linear (or non-linear) age specification, and concern with environmental issues was not prominent before the 1970s.
All variables below that are measured relative to plant capacity are measured in this way.
For the TRI analysis we use total pollution abatement operating costs relative to plant size (PAOC).
Regressions include a dummy variable for missing Compustat data, MISSFIRM, which cannot be reported due to Census Bureau disclosure rules.
Particles of 2.5 μm or less in diameter.
Relatively few of our emissions reports are based on actual monitored emissions; the majority of emission reports are based on calculated emissions or engineering estimates, based on the capacity of the production process and the design efficiency of the installed pollution abatement equipment.
TRI chemicals are limited to those included in the ‘core chemical’ list for the 1988 TRI (found at http://www.epa.gov/triexplorer/list-chemical-core-88.htm).
Gray and Shadbegian (2005) found some evidence that compliance with air pollution regulations by plants which are owned by larger firms is less sensitive to inspections and more sensitive to enforcement actions than those owned by smaller firms.
We would like to thank Randy Becker, who created this dataset and graciously made it available to us for this project. The data is described in more detail in Becker (2005).
A revised version of the PACE survey was done in 1999, but it was not longitudinally consistent with the pre-1999 PACE data so it is not used here (see Becker and Shadbegian (2005) for more information).
Estimating small and insignificant contributions of capital to output is common in empirical results, as discussed in Griliches and Mairesse (1995).
See Kodde and Palm (1986) for a table of critical values for this test.
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Acknowledgments
Financial support for the research from the National Science Foundation (Grant # SBR-9410059) and the Environmental Protection Agency (Grants # R-832155-01-0 and #R-826155-01-0) is gratefully acknowledged, as is access to Census data at the Boston Research Data Center, which is partially supported by the National Science Foundation (Grant #SES-0427889). Excellent research assistance was provided by Anna Belova and Bhramar Dey. The opinions and conclusions expressed are those of the author and not the Census Bureau, EPA, or NSF. All papers are screened to ensure that they do not disclose confidential information. Any remaining errors or omissions are the authors’.
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Shadbegian, R.J., Gray, W.B. Assessing multi-dimensional performance: environmental and economic outcomes. J Prod Anal 26, 213–234 (2006). https://doi.org/10.1007/s11123-006-0017-3
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DOI: https://doi.org/10.1007/s11123-006-0017-3