My husband, Paul, who is an enabler of the exuberance of his wife and five kids.

Putin. Because he is so comfortably who he is.

Zelenskyy for holding out against Putin.

My mother, Mary Davidson, for having me at 16 – a child herself – and raising me with very little.

Because there are so many business we do across the boundaries. So, I think this is the only way a Japanese service company can really, truly become the global organization.

My answer may have surprised some in attendance at the meeting: I don’t have a role model or sensei. Or to be more precise, I don’t have a single teacher. Instead, I take it upon myself to learn from everyone around me. If we open our eyes, we may find that everyone can be our teacher.

Of course, my decision faced plenty of criticism. One of my fellow Japanese CEOs went so far as to call the plan “stupid” – notable, in a country where executives do not generally criticize one another in the press. Clearly, I would have to fight an uphill battle for cultural acceptance. But I was not deterred. A seismic shift demands that we adapt to a new landscape, and a seismic economic shift is exactly what Japan has undergone in recent decades, driven by the forces of globalization and digitization. The only way to compete in this interconnected internet age is to speak the language of the market – and that language is English.

Until then, I had thought that the goal of a business person was to get ahead in a big company, but at Harvard I learned that starting a business was the greatest possible achievement in business. In the United States, people who start small companies are praised.

In Rakuten's case, adjustment certainly took time. At first, meetings often felt awkward. The first board meeting after the Englishization decision took four hours to complete – double the normal duration. But whenever executives asked if they could say certain things in Japanese, I told them no. I knew that the challenge would pay off – and it has.

As an entrepreneur, I am the sort of person who prefers to understand things in an intuitive way and make top-down decisions. I have previously referred to the process by which I make decisions as a game of catch between my left and right brain.