a. The price of comparable French wines decreases.
b. One hundred new wineries open in California.
c. The unemployment rate in the US decreases.
d. The price of cheese increases.
e. The price of a glass bottle increases significantly due to new government anti-shatter regulations.
f. Researchers discover a new wine-making technology that reduces production costs.
g. The price of wine vinegar, which is made from the leftover grape mash, increases.
h. The average age of consumers increases, and older people drink less wine.