$($g$)$ Does factor price equalization through commodity trade occur in sector specific model?

$($h$)$ What is meant by optimum tariff?

$($i$)$ What is quota?

$($j$)$ When a country is considered as large open economy in international trade?

$($k$)$ Will the factor prices be affected for an increase in capital endowment in Jones $(1965)$ model?

$($l$)$ What are the sources of national saving in an open economy?