An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave.
Elasticity of supply measures how the amount of a good changes when the producer hires more employees. Elasticity of supply measures how the amount of a good changes when the producer uses new materials. Elasticity of demand measures how the amount of a good changes when its price goes up or down. Elasticity of demand measures how the amount of a good changes when its distribution expands.
Elasticity of Demand. Demand elasticity means how much more, or less, demand changes when the price does. It's specifically measured as a ratio -- the percent change of the quantity demanded divided by the percent change in price. Unit elastic is when demand changes the exact same percent as the price does.