You hear the fog signal of another vessel, and a risk of collision exists. what action must you take?

Before tuberculosis was understood to be a communicable disease, and before the discovery of antibiotics to treat it, a major outbreak could kill or cripple a significant portion of a nation’s labor force. how would such an event affect the economy? illustrate the effect by dragging to shift either the aggregate demand curve or the long-run aggregate supply curve.

Explain at least three factors economists consider the measurement of success, or shortcomings, of the economy? and give examples.

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society