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This article explains how the sizes of different packaged food categories change in relation to a variation in disposable income and answers questions like: "Do all categories benefit equally from a rise in income, or do some categories decline when incomes rise as consumers trade up to more premium products?" The article suggests how snack bars and baby food the most elastic and bread and pasta the least elastic and more facts.

This article basically explains what income elasticity is and why it is important. There is a lot of useful information here.

The average household income is increasing which means that the demand for self-employed workers is on the rise. As the income rises, the consumers are more willing to hire self-employed workers such as lawyers or plumbers more often. This means that the labour of these personally-hired workers is a normal good because when the income rises, the demand rises as opposed to an inferior good.

This article talks about the idea behind Starbucks and how they increase their prices. It establishes a connection between PED and PES. It also talks about how we gone from not appreciating coffee to becoming a caffeine addicted economy.

This article explains the correlation between the increase of average income of people and government budget spent on healthcare programs.

There is a new partnership to commercialize graphene. Supplies available were low, but now with the new jointed work, they are able to commercialize graphene and graphene technology. Graphene technology is going to help further research. Graphene is used in technology and can advance things that produce large amounts.