The "Fair Prices for Local Businesses Act" significantly strengthens the prohibition against price discrimination under the Clayton Act . It expands the Act's jurisdiction by changing "in commerce" to "in commerce or in any activity affecting commerce" and broadens the types of transactions covered from "commodities" to include all "products or services," explicitly mentioning service provision. These changes aim to ensure a wider range of discriminatory practices are subject to legal challenge. Key amendments include the removal of the "good faith to meet an equally low price of a competitor" defense, making it harder for sellers to justify price differences. The bill also clarifies that individuals or entities inducing or receiving discriminatory prices can be held liable, though a knowledge requirement is introduced for very large retailers with annual sales exceeding $100 billion. Furthermore, it defines "purchase" and "purchaser" broadly to encompass any exchange of value for a product or service. Crucially, the legislation introduces a new provision for damages, stating that a plaintiff proving unlawful discrimination will be conclusively presumed to have sustained damages equal to the monetary amount of the discrimination. This provision simplifies the burden of proof for victims, allowing them to also seek additional damages beyond this presumed amount. The Act's changes apply to transactions occurring on or after its enactment, intending to foster more equitable pricing for businesses.