Passport Bro phenomenon is of men who are tired of the 80/20 pareto rule in
dating and are choosing to
go abroad to Asia (mainly Southeast Asia) where women appreciate their value more. This is due to Hoeflation, as explained elsewhere.
The Austrian school of economics believes any increase in the
money supply not supported by an increase in the production of goods and services leads to an increase in prices.
Likewise, suppose there is an increase in the quality of men but no increase in the quality of women. This causes an increase in the demand for good women as there is a decent amount of good men. Thus, the
price of good women will now increase.
Remember the law of demand (the law of demand states that quantity purchased varies inversely with price), so men will
go where there value is appreciated more where they do not have to deal with enormous rip-offs.
The decline in quality of Western women and the rise of quality in Asian women is as stark as the takeover of
Japanese automobiles being more valuable than
American automobiles around the 1980s. More value for one's
money, a greater return on an investment (ROI - more bang for your buck).