Diminishing returns to physical capital means that when the amount of human capital per worker and the state of technology are held fixed, each increase in the amount of physical capital per worker leads to:
a. a smaller increase in the marginal product of labor.
b. a decrease in the total amount of output.
c. negative marginal product.
d. a constant amount of total output.

Acolleague from the plant in germany has arrived at the chicago plant to share insights on a recent product line changeover implemented in germany. this changeover has saved thousands of euros at the german facility, but jim does not think it will work in the united states. jim feels that there is a completely different attitude towards work and innovation in the u.s., and in fact, thinks the german facility is technologically behind his plant. additionally, the colleague often mispronounces words when he speaks english, and doesn't dress appropriately for the u.s. office. he showed up to work on the plant floor in a formal suit and tie, with dress shoes that had a slippery sole. however, the colleague is a guest, and it is important that jim pretends to be interested. identify the listening barriers. check all that apply. thought speed grandstanding faking attention nonverbal distractions psychological barriers