The food products sold by our franchisees and in our company-owned restaurants, and the raw materials used in their these restaurants, are sourced from a variety of domestic and international vendors, suppliers and distributors. We, along with our franchisees, are also dependent upon third parties to make frequent deliveries of food products and supplies that meet our specifications at competitive prices. Shortages or interruptions in the supply of food items, raw materials and other supplies to our franchisees' restaurants could adversely affect the availability, quality and cost of items we use and the operations of our franchisees' and company-owned restaurants. If such shortages result in increased cost of food items and supplies, we and our franchisees may not be able to pass along all of such increased costs to restaurant customers.
Such shortages or disruptions could be caused by inclement weather, natural disasters, increased demand, problems in production or distribution, restrictions on imports or exports, the inability of vendors to obtain credit, political instability in the countries in which suppliers and distributors are located, the financial instability of suppliers and distributors, suppliers' or distributors' failure to meet our standards, product quality issues, inflation, the price of gasoline, other factors relating to the suppliers and distributors and the countries in which they are located, food safety warnings or advisories or the prospect of such pronouncements, the cancellation of supply or distribution agreements or an inability to renew such arrangements or to find replacements on commercially reasonable terms, or other conditions beyond our control or the control of our franchisees or us. Increasing weather volatility or other long-term changes in global weather patterns, including any changes associated with global climate change, could have a significant impact on the price, availability and timing of delivery of some of our ingredients.
A shortage or interruption in the availability of certain food products, raw materials or supplies could increase costs and limit the availability of products critical to our franchisees' and company-owned restaurant operations, which in turn could lead to restaurant closures and/or a decrease in sales and therefore, and a reduction in our revenues and royalty fees paid to us. In addition, failure by a key supplier or distributor to our franchisees to meet its service requirements could lead to a disruption of service or supply until a new supplier or distributor is engaged, and any disruption could have an adverse effect on our franchisees and therefore our business. See "Business-Supply Chain Assistance."