Abstract
          
  
              Introduction
          
        - Data cleaning
 - Crosschecking of data across two points in time
 - Comprehension of the changes through the implementation of a survey
 - Calculation of the number of local unit start-ups, closures, and relocations
 - Calculation of the start-up, closure and relocation rates
 - Comparison with existing statistics on the start-up and closure rates of local units
  
       
		  Conclusion
        
        
		
  
              【Notes】
            
  
              【References】
            
  
                       
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        Hiromi MORI/ Noriaki SAKAMOTO | 
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