The Heckscher-Ohlin model is famous for being elegant and mathematically sophisticated, yet failing to describe reality. One manifestation of this fact is Trefler's Case of Missing Trade.
1) Explain what exactly is missing. In what sense is it missing?
2) How would you explain why it is missing?
3) How can a relaxation of the identical production functions explain the case of the missing trade?
I need an unique, no plagiarism answer for each question, because Professor will check it.