Let’s now return to the question posed at the beginning of this chapter: What hap- pens to wheat farmers and the market for wheat when university agronomists dis- cover a new wheat hybrid that is more productive than existing varieties? Recall from Chapter 4 that we answer such questions in three steps. First, we examine whether the supply curve or demand curve shifts. Second, we consider which di- rection the curve shifts. Third, we use the supply-and-demand diagram to see how the market equilibrium changes.