His extraordinary success — both on the field and on the ledger — shines a bright light on one of the most important, yet least acknowledged, ways in which the American economy benefits from immigration. A generation ago, no player could have generated the sort of economic returns Ohtani does. But a variety of factors have combined to make today’s superstars more valuable — and that holds true everywhere in the economy, not just in baseball. Why? Technology allows access to larger audiences, companies have gotten bigger and new tools allow them to leverage the skills of the most capable individuals.