Which of the following are factors that can cause a shift in supply?

A. demand decreases and competition increases
B. demand increases and competition decreases
C. less availability of products and increasing market share
D. production increases and establishment of new companies

Answer :

Gibbs
A major increase in production due to some market factor as well as the establishment of new companies could potentially lead to a shift in the supply curve for a good. The other answers would not create a shift in the supply curve. 

After a sudden cutoff of coffee shipments, buyers are demanding more coffee than is available at current prices. What is this market experiencing