It also proves (1), since it is a response (QRT, rather than a comment) to a tweet describing the trade deficit/exports approach, and starts with "No we literally calculated tariff and non tariff barriers.", and then presents the formula proving (2).
It also proves (1), since it is a response (QRT, rather than a comment) to a tweet describing the trade deficit/exports approach, and starts with "No we literally calculated tariff and non tariff barriers.", and then presents the formula proving (2).