Answer: An ethnography
Explanation: An ethnography studies the daily life and culture of a society and may involve the researches to immerse themselves in the culture by living with the group of people.  
In practice, ethnographers live with their subjects for a period of one year or more to achieve immersion while aiming to retain some detachment necessary to observe their what is unique about, and peculiar to the culture.  
 
        
             
        
        
        
Um if you mean shrinking. It means things are getting smaller and are downgrading in size. 
If you are talking world related "shrinking world" it means that organisms, plants and that are getting smaller. And everything in the Earth is getting smaller.
Also meaning that it is easier to talk to people across the world because they are not as far away. And that just it is easier to access everything I guess.
        
             
        
        
        
I think that it could change
        
             
        
        
        
Price ceilings prevent a price from rising above a certain level. When a price ceiling is set below the equilibrium price, quantity demanded will exceed quantity supplied, and excess demand or shortages will result. Price floors prevent a price from falling below a certain level.