Which of the Following Statements Is Supported by Research on Secular

question 52

Multiple Choice

Which of the following statements is supported by research on secular trends?

• A) The larger size of today's children is mostly due to a faster rate of physical development.
• B) Age of first menstruation increased steadily from 1900 to 1970.
• C) Secular trends are primarily observed in wealthy, industrialized nations.
• D) Secular trends are larger for low-income children, who have poorer diets.

---

Definitions:

Economies of Scale

Economies of scale describe the reduction in per-unit cost that a company benefits from as it scales up production. This cost benefit is due to the fixed costs spreading over a larger number of units.

Economies of Scope

Cost advantages that enterprises obtain by producing a wide range of products, diversifying their output, and sharing production inputs.

Economies of Scope

Cost advantages that enterprises obtain due to the efficient production of a wide range of products rather than specializing in a single product or service.

Joint Cost Function

A concept in economics where certain costs are incurred to produce multiple products simultaneously, making it challenging to allocate the costs distinctly to each product.