Within the supply-and-demand model, a tax collected from the buyers of a good shifts the a. supply curve upward by the size of the tax per unit b. demand curve downward by the size of the tax per unit c. supply curve downward by the size of the tax per unit d. demand curve upward by the size of the tax per unit

When buyers are taxed on a good, the additional amount they need to pay per unit effectively reduces their willingness to purchase at any given price. This shift in their purchasing behavior causes the demand curve to move downward by the size of the tax per unit. Just imagine if your favorite coffee suddenly cost more due to a tax; you might consider buying less or switching to tea! In real-world scenarios, this can lead to interesting market dynamics. For instance, if the tax causes a significant drop in demand for a product, producers might respond by lowering prices, which could then create a ripple effect throughout the supply chain, leading to altered production strategies or even layoffs in extreme cases. Understanding these effects helps both consumers and producers navigate the complexities of taxed goods.