# XWUIChartSupplyAndDemand

A supply-and-demand chart: a fixed-type wrapper around `XWUIChart` that plots two opposing curves (e.g. supply vs demand) on shared axes so their crossing - the equilibrium point - is visible. Pass `{ series }` (one series per curve) plus a `block` preset (1-4) and `size`. Use it for economics-style visuals where the intersection of two trends is the key insight.

## Basic Usage

Two series (Series A and Series B) of six monthly values, Jan through Jun, rendered at medium size as two curves on shared axes that cross where supply meets demand.

```example
file: examples/BasicUsage.ts
html: examples/BasicUsage.html
title: Basic Usage
description: Two monthly series plotted as opposing curves on shared axes, crossing at their equilibrium point.
```

## Coffee Market Equilibrium

The wholesale coffee-bean market plotted as price vs quantity, where the rising supply curve and falling demand curve cross at the market-clearing price.

```example
file: examples/CoffeeMarketEquilibrium.ts
html: examples/CoffeeMarketEquilibrium.html
title: Coffee Market Equilibrium
description: Supply and demand curves for coffee beans crossing at the market-clearing price, with kilogram tooltips.
```

## Labor Market Wages

A regional labor market where hours supplied rise with the wage and employer demand falls, meeting at the prevailing equilibrium wage.

```example
file: examples/LaborMarketWages.ts
html: examples/LaborMarketWages.html
title: Labor Market Wages
description: Hours supplied versus hours demanded across hourly wages, intersecting at the equilibrium wage.
```

```api
```