Many companies hire business economists to develop quantitative estimates of the relationships among the variables that influence the demand for their products. Explain what types of biases arise in the direct surveys approach to understanding consumer demand and behavior. 19. Many companies hire business economists to develop quantitative estimates of the relationships among the variables that influence the demand for their products. Explain what types of biases arise in the direct surveys approach to understanding consumer demand and behavior. No answer text provided. c. The responses may be useless. a. Consumers may be too direct in giving unfriendly responses. b. consumer responses may not accurately reflect their actual behavior in the marketplace