InmanystudiesquestionnaireshavebeendistributedtoenterprisesinordertofindouttheirassessmentofwhetherEMAcreatesvalue-added,theproportionofenvironmentalcosts,therelationshipbetweenproductionprocessesandenvironmentalcostsetc.(Boumaetal1999).
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In many studies questionnaires have been distributed to enterprises in order to find out their assessment of whether EMA creates value-added, the proportion of environmental costs, the relationship between production processes and environmental costs etc. (Bouma et al 1999).