Why do economists worry about extended periods of deflation? Group of answer choices

When the price level falls, businesses are unable to sell their products at a price high enough to cover costs they have already incurred, putting producers at risk of failure.

When price levels drop, aggregate demand increases.

None of the above.

When price levels drop, the economy needs more time to recover compared to a period of high inflation.

Which statement reflects a citizens need to increase his civic particpation

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided.a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs.an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.