Diane is not paying attention to her boyfriend talking, when all of the sudden something he says stops her. she says, "wait a minute . . did you say something about marriage? " his mention of marriage left a trace in her memory, and she subsequently paid attention to this information.

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.

Federalism began to spread super soon after

Acase study allows a more detailed look at the life of a single subject than any other study