Final answer:
Market scenarios are ordered from lowest to highest price based on competition levels: multiple plastic producers offer the lowest prices in a competitive market, two cable companies result in moderate prices in a duopoly, and one Internet provider leads to the highest prices in a monopoly.
Step-by-step explanation:
The question asks to order market scenarios based on their expected price levels, from lowest to highest. To address this, one must understand the dynamics of supply and competition. Considering a messenger company that relies significantly on gasoline for deliveries, we notice that if gasoline prices fall, the company's costs decrease, which could allow the company to offer more services at lower prices due to increased supply.
Applying this understanding to the scenarios presented:
- Multiple plastic producers sell plastic to toy manufacturers - represents a competitive market, likely resulting in lower prices.
- Two cable companies compete for customers in a small town - a duopoly where competition exists but is limited, could lead to moderate prices.
- One Internet provider dominates an area - a monopoly with no competition, usually resulting in the highest prices.
Thus, from lowest to highest price, the order is multiple plastic producers, two cable companies, and one Internet provider.