Often, the effects of fiscal policy aren't felt equally by everyone. Depending on the political orientations and goals of the policymakers, a tax cut could affect only the middle class, which is typically the largest economic group. In times of economic decline and rising taxation, this same group may have to pay more taxes than the wealthier upper class. Similarly, when a government decides to adjust its spending, its policy may affect only a specific group of people. A decision to build a new bridge, for example, will give work and more income to hundreds of construction workers. A decision to spend money on building a new space shuttle, on the other hand, benefits only a small, specialized pool of experts and firms, which would not do much to increase aggregate employment levels.