Replication Data for: Environmental Pressure Group Strength and Air Pollution: An Empirical Analysis (with Seth Binder), Ecological Economics, 55 (4), 2005, pp. 527-538 
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'There is an established theoretical and empirical case-study literature arguing that environmental pressure groups havea real impact on pollution levels. Our original contribution to this literature is to provide the first systematic quantitativetest of the strength of environmental non-governmental organizations (ENGOs) on air pollution levels. We find thatENGO strength exerts a statistically significant impact on sulfur dioxide, smoke and heavy particulates concentrationlevels in a cross-country time-series regression analysis. This result holds true both for ordinary least squares and randomeffectsestimation. It is robust to controlling for the potential endogeneity of ENGO strength with the help of instrumentalvariables. The effect is also substantively important. Strengthening ENGOs represents an important strategy by w' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Civil society","Environmental groups","Environmental policy","Lobbying","Non-governmental organizations"]} <|eot_id|>
 Here is the Description of a dataset. Description:'There is an established theoretical and empirical case-study literature arguing that environmental pressure groups havea real impact on pollution levels. Our original contribution to this literature is to provide the first systematic quantitativetest of the strength of environmental non-governmental organizations (ENGOs) on air pollution levels. We find thatENGO strength exerts a statistically significant impact on sulfur dioxide, smoke and heavy particulates concentrationlevels in a cross-country time-series regression analysis. This result holds true both for ordinary least squares and randomeffectsestimation. It is robust to controlling for the potential endogeneity of ENGO strength with the help of instrumentalvariables. The effect is also substantively important. Strengthening ENGOs represents an important strategy by w' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
There is an established theoretical and empirical case-study literature arguing that environmental pressure groups havea real impact on pollution levels. Our original contribution to this literature is to provide the first systematic quantitativetest of the strength of environmental non-governmental organizations (ENGOs) on air pollution levels. We find thatENGO strength exerts a statistically significant impact on sulfur dioxide, smoke and heavy particulates concentrationlevels in a cross-country time-series regression analysis. This result holds true both for ordinary least squares and randomeffectsestimation. It is robust to controlling for the potential endogeneity of ENGO strength with the help of instrumentalvariables. The effect is also substantively important. Strengthening ENGOs represents an important strategy by w
Civil society; Environmental groups; Environmental policy; Lobbying; Non-governmental organizations