Grant was seen laughing inappropriately in the library as if he was responding to internal stimuli. on the bus home, he was crying uncontrollably and suddenly became angered when a fellow passenger offered him a tissue. grant's excess of inappropriate behavior reflects schizophrenia's symptoms.

I believe the answer is: positive symptoms

In mental disorder, positive symptoms refers to the behaviors/characteristic that is not present by normal population but present in the patient.
Other positive symptoms of schizophrenia include: Delusional thought, hallucinations, and racing thoughts.

In financial aspects, a depression is a sustained, long haul downturn in monetary movement in one or more economies. it is a more extreme monetary downturn than a recession, which is a slowdown in financial action through the span of a typical business cycle. a depression is an irregular and extreme type of recession. so depression is always followed by recession but it is not correct to state that a depression always follow a recession.