Presents the basic economic and physical theory underlying modern resource/environmental economics, its application to the construction of analytical models, and the corresponding requirements for statistical data. Places particular emphasis on realistic'' models. Maps past, present and future flow of materials and energy through processing, consumption, and environmental wastes. Discusses available data sources and the organization of data into appropriate statistical subsystems. Jointly treats economic and technological considerations.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.