Which groups behavior lowers property values?

What were some of the new consumer appliances that americans could purchase in the 1920s

The incas used quipus to options -preserve there history -keep records of people and goods -decide when to plant crops -decide work amoung peasant familys

With the start of each new era in japan the country‘s capital changed location, why? a. so the nobility would be able to retain power b. so the capital would be in the new leaders city c. to give each region of the country an opportunity to rule d. to accommodate shifts in the country’s population