An airline has a low marginal cost per passenger of $30 on a route from Boston to Detroit. At the same time the typical fare charged is $300. The planes that fly the route are usually full, yet the airline claims that is loses money on the route, how is this possible?

1) While the marginal cost of adding a passenger may be small, a typical flight typically has huge fixed costs.

2) it may be that flights from Detroit have huge profit margins -- such that an airline is willing to take a loss on getting people to Detroit, knowing that it will more than make up the loss on any connecting flights.

The airline's claim that it loses money on the Boston to Detroit route may seem contradictory given the low marginal cost per passenger. However, there are several factors that can explain this situation:

1. Fixed Costs: While the marginal cost per passenger is $30, the airline also incurs significant fixed costs. Fixed costs include expenses such as aircraft maintenance, lease payments, labor, and overhead costs. These costs remain the same regardless of the number of passengers on the flight.

2. Price Elasticity: Despite the $300 fare, the demand for flights on this route may be relatively elastic. This means that even a small increase in ticket prices could significantly reduce the number of passengers. As a result, the airline may need to keep fares relatively low to maintain high occupancy rates. This could limit the airline's ability to generate enough revenue to cover the fixed costs.

3. Competitive Market: The Boston to Detroit route may have intense competition from other airlines. If competitors are offering similar services at lower fares or have lower fixed costs, it could put additional pressure on the airline's profitability. This can make it challenging for the airline to charge higher fares and maintain a profitable position.

4. Revenue Allocation: It's also important to consider how the airline allocates revenue across its routes. Even if the Boston to Detroit route is not profitable on its own, it could be generating revenue that helps offset losses on other less profitable routes or helps cover the airline's overall operational costs. Therefore, the airline's claim that it loses money on the Boston to Detroit route may be based on a broader perspective rather than just the performance of that particular route.

In summary, while the low marginal cost per passenger on the Boston to Detroit route may suggest profitability, the presence of fixed costs, price elasticity, competitive market conditions, and revenue allocation can all contribute to the airline's claim that it loses money on the route.

The airline's claim that it loses money on the Boston to Detroit route seems counterintuitive given the low marginal cost per passenger and high fare charged. However, there are several factors that can explain this apparent contradiction.

Firstly, it's important to consider the fixed costs associated with operating the route. Fixed costs are expenses that do not vary with the number of passengers, such as fuel, aircraft maintenance, staff salaries, and airport fees. These fixed costs are significant for airlines and need to be allocated across all routes in their network.

Secondly, competition plays a crucial role in determining the profitability of a route. If there are multiple airlines operating the same route, they may engage in price wars to attract passengers. This can lead to lower fares, reducing the revenue generated per passenger and potentially negating the low marginal cost advantage.

Thirdly, there are other expenses that need to be factored in, such as marketing costs, administrative expenses, and taxes. These costs can further eat into the revenue generated by the airline.

Lastly, disruptions like bad weather, flight delays, or cancellations can impact the airline's costs. These unexpected events can lead to additional expenses, such as rebooking passengers, providing hotel accommodations, or reimbursing passengers for inconveniences caused. Such incidents can have a significant financial impact on the airline, even if they occur infrequently.

To determine whether the airline is truly losing money on the route, one would need to consider all the costs involved, including fixed costs and various operational expenses. Additionally, examining revenue trends over a longer period of time can give a clearer picture of the overall profitability of the route.