Which of the following statements correctly expresses the relationship between technical and economic efficiency? Multiple choice question. No production processes is both economically and technically efficient. An economically efficient method of production is also technically efficient. A technically efficient method of production is also economically efficient. All production processes are both economically and technically efficient.The downward sloping portion of the long-run average total cost curve is the result of _____. Multiple choice question. economies of scale diminishing marginal product diminishing marginal cost economies of scope