What this is
Whether the Tokyo parent’s up-and-down profit, 2000–2016, tracks store openings and new subsidiaries: profit fell in 7 of 10 such years and rose in all 7 others.
How it’s built
- Each dated store opening or new subsidiary in the company’s official history is mapped to its March–February year.
- These are compared with the year-on-year change in parent profit.
- A standard exact test puts the chance of this pattern arising at random at 0.6%.
What we assumed
- Set-up costs of stores and new companies hit the parent’s profit.The research’s interpretation; consistent with the pattern but not shown directly.
- Game releases and other events are not controlled for.Pokémon game launches and one 2010 subsidiary of unknown month are left out.
- The 2002 profit is the back-calculated figure.It was not transcribed.
Sanity check
A zigzag series tends to reverse on its own, which flatters this kind of test, and stores after August 2011 may sit in a subsidiary. Treat it as suggestive.
Where it comes from
Our calculation from other figures in the trainer’s notes:
Show the working
- Event years with net profit decline: 7/10
- Non event years with net profit rise: 7/7
- Fisher one sided p: 0.006
- Map each dated store opening or new subsidiary/office on TPC's official history (..23) to the TPC fiscal year (Mar–Feb) and compare with the year-on-year change in parent NI
- Result: 7 of 10
Where it’s used
Related figures
Built from this one