Stock, Crave and Even

Stock spoke first, because a market begins with the question how much is there? Stock's whole nature was supply — how much of a thing gets made and brought to sell — and Stock knew the amount was never an accident; it came from the choices of everyone who produced. "This morning the farmers had a choice. Berries sold well last week, so more of them planted, picked, and hauled berries in today. When something's worth bringing, more of it shows up — that's the law of supply: a higher price draws out a larger quantity." Stock pointed to a lonely half-crate of winter squash. "Squash sold badly, so barely anyone bothered. Supply isn't a fixed thing — it's a living answer to 'is it worth bringing?' Today, for berries, the answer was a great big yes."

Then Crave moved through the buyers, because a pile of goods means nothing until you know how much do people want it? Crave's whole nature was demand — the pull of what people want and how much they'll give up to get it — and Crave felt it like weather. "The berries — everyone wants these. Sweet, in season, kids tugging sleeves. Strong want. But watch the edges: if the price climbs too high, some buyers sigh and walk away. They want berries, but not at any price. And squash?" Crave drifted past the lonely crate. "Barely a flicker." Crave turned back. "That's the law of demand: wanting bends with the price — the higher the cost, the fewer who'll pay; the lower, the more who reach. Demand isn't a single number. It's a whole sliding scale of how many, at what price."

Now the two great forces faced each other — a big supply of berries, a strong-but-bendable want — and Even stepped into the middle to do the one thing neither side could do alone: find where they agree. "Neither Stock nor Crave sets the price. I don't even set it — it settles, right where the amount for sale matches the amount people will buy. We call that the equilibrium." Even worked the little board. "Price the berries too high, and crates sit full while buyers walk off — that's a surplus, too much supply for the takers, and it pushes the price down. Price them too low, and every berry's snatched in a minute while latecomers find empty crates — a shortage, too much want for the berries, and it pushes the price up. But here — right here — the berries for sale and the berries wanted finally match. Crates empty just as the last willing buyer pays. Not one side winning. Both agreeing." And because berries were plentiful today, that meeting point sat low and friendly — lots of supply, so a gentle price.