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This article discusses how the car sales have been hurt in the past due to the recession. The article talks about how the private sector has become a bigger target for the car companies. The elasticity of supply has grown to fit this curve, causing the car companies to gain some more profit that they had in the past. The companies also began to target people that care more about the environment, selling many more low emission type cars. They had to adapt to what the demand was, causing their elasticity of supply to grow to fit many wants.

The article says that the number of cars sold in the past has decreased. However the market for cars has recovered. The articled shows how companies adapted to the changing needs of customers. Customers now want more fuel efficient cars and often buy them on the private market. This causes the elasticity of supply of these companies to increase because they quickly had to adapt to the new situation.

This article describes how a hotel manager is changing the plan to achieve a higher total revenue, as the hotel no longer offers what is demanded the most. Competitors may have these facilites that are demanded, and one could make a graph on the cross elasticity of demand with this hotel and a competitor if one had the right numbers.

This article talks about Lenovo's vision of growing demand for their 7-inch tablets. It suggests combinations of substitutes and complement goods, which has to do with the value of XED. They see tablets as competitors for large-screen smartphones (like Samsung S3), but also as something that will not replace traditional computers. So, value of XED in combination tablets - smartphones is positive, meaning that these two goods are substitutes, whereas the value of XED in combination tablets - computers is negative, meaning that these two goods are complements. Lenovo also suggests that they are prepared for the steady supply of high-resolution touch screens for which they see a bright future as components of computers. So, it is also about non-determinant of supply - expectation for future prices.