```json
{
  "price": 190,
  "message": "Pricing 190 for mutual benefit.",
  "note": "190 is the symmetric profit-maximizing price and sustainable in repeated play."
}
```

**Action Justification:**
In the first period with no history, I adopt the symmetric profit-maximizing strategy. Computing profit for both firms at each price when choosing identically, I find profit is maximized near p≈193 on the continuous range, with p=190 being optimal on the discrete grid. At p=190, both firms earn ≈3371 per period. While individual deviation (to ~p=175) yields 3911 next period, this is economically irrational in a repeated game: cooperation value over time (67428 at discount 0.95) far exceeds one-time deviation gain (540). This price signals willingness to cooperate at a focal, stable equilibrium.