Abstract

This study investigated factors influencing the adoption or intention to adopt renewable portfolio standards (RPS) by individual states in the United States (U.S). Theory of adoption of innovation was applied as a conceptual framework. A logistic model was used to achieve the task. Gross state product (GSP), growth rate of population (GRP), political party dominancy, education level, natural resources expenditure, and share of coal in electricity generation were used as explanatory variables. Results indicated that the model predicts the dependent variable (state's choice of adopting or not adopting RPS) 82 times correctly out of 100. Results also suggested that education followed by political party dominancy, GSP and GRP are shown to have large impacts on the probability of RPS adoption.

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