निम्नलिखित में से किसके कारण किसी वस्तु का आपूर्ति वक्र (supply curve) दाईं ओर स्थानांतरित होगा?

In market economics, what primary factor leads to a sharp rise in vanilla market prices due to premature harvesting?

If two goods are close substitutes, how does a price change in one affect the demand for the other?

Which of the following is NOT an exception to the 'Law of Demand'?