and quicker cash generator". Three crucial differentiating model factors exist within fast fashion consumption: market timing, cost, and the buying cycle. Timing's objective is to create the shortest production time possible. The quick turnover has increased the demand for the number of seasons presented in the stores. This demand also increases shipping and restocking time periods. Cost is still the consumer's primary buying decision. Costs are largely reduced by taking advantage of lower prices in markets in developing countries. In 2004 developing countries accounted for nearly seventy five percent of all clothing exports and the removal of several import quotas has allowed companies to take advantage of the even lower cost of resources. The buying cycle is the final factor that affects the consumer. Traditionally, fashion buying cycles are based around long term forecasts that occur one year to six months before the season. Supply chain, vendor relationships and internal relationships Supply chain Supply chains are central to the creation of fast fashion. Supply chain systems are designed to add value and reduce cost in the process of moving goods from design concept to retail stores and finally through to consumption. Efficient supply chains are critical to delivering the retail customer promise of fast fashion. The selection of a merchandising vendor is a key part in the process. Inefficiency primarily occurs when suppliers can't respond quickly enough, and clothing ends up bottlenecked and in back stock. Two kinds of supply chains exist, agile and lean. In an agile supply chain the principal characteristics include the sharing of information and technology. The collaboration results in the reduction in the amount of stock in megastores. A lean supply chain is characterized as the correct appropriation of the commodity for the product. Vendor relationships The companies in the fast fashion market also utilize a range of relationships with the suppliers. The product is first classified as "core" or "fashion". Internal relationships Productive internal relationships within the fast fashion companies are as important as the company's relationships with external suppliers, especially when it comes to the company's buyers. Traditionally with a "supermarket" market the buying is divided into multi-functional departments. The buying team uses the bottom-up approach when trend information is involved, meaning the information is only shared with the company's fifteen top suppliers. On the other hand, information about future aims, and strategies of production are shared downward within the buyer hierarchy so