Table 9.

Dependent variable description for the second stage of the Heckman estimation model

Ranking scoresDefinitionMeanMin.Max.SourceYear of collection
SI – Setting and infrastructureScore relative to university policy towards green environment246.201,350GreenMetric website2014–2023
EC – Energy and climate changeScore to university attention to the use of energy and energy efficiency and related climate change issues375.801,975
WS – WasteScore relative to waste treatment and recycling programs448.801,800
WR – WaterScore relative to water usage and conservation programs168.301,000
TR – TransportationScore relative to university policies to reduce transportation carbon footprint357.301,800

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