There is a significant disparity in the reliance on domestic leagues for national team players, highlighting how some countries predominantly field home-based players while others have most of their talent playing abroad. This reflects varying strengths and financial attractions of domestic leagues, as well as differing strategic approaches to player development and exposure to international competition.
Countries like England, Italy, Germany, and Spain have a high percentage of players from their domestic leagues. This suggests these leagues are strong and/or have better financial resources and can retain top talent.
Smaller nations export. Countries like Albania and Denmark have 0% of players from domestic clubs, suggesting their top players are employed abroad, likely to those leagues with stronger competition and/or better financial resources.