Final answer:
Product screening is the process of reducing product ideas based on criteria, while product evaluation involves determining their profitability, which includes cost/benefit analysis and accounting for economic principles such as scarcity and tradeoffs.
Step-by-step explanation:
Reducing the number of new product ideas based on specific criteria is a function of product screening, whereas determining the profitability of those ideas is a function of product evaluation.
In a structured decision process, ideas are evaluated against set constraints and compared using established criteria, selecting the concept that best meets the project goals for product implementation. Meanwhile, a cost/benefit analysis helps in making economical decisions by weighing the marginal costs against marginal benefits, a fundamental tool to ascertain the financial feasibility of a product concept.
Understanding economic concepts such as scarcity and tradeoffs is crucial in the product development process. Scarcity dictates that there are limits to the resources available, and tradeoffs involve forgoing a certain quantity of one good to obtain more of another. This dynamic is essential to consider when screening and evaluating new product ideas.