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2020 ITU Kaleidoscope Academic Conference




             Table 2 – The input-occupation-output partially closed              11       12  …      1    ’
                         model reflecting WeChat                                 21       22  …      2    ’
                                                       Tot                  = �  …  …  …   …  �          (6)
                 Intermediate use   Final demand       al
                                                       out                           1           2  …               ’
                 De    De      De   De   De       De   put/   The  complete  consumption  coefficient  is  particularly
                 part  part  … part  part  part  … part  Tot  important  in  analyzing  the  production  service  industries
                 me    me   … me    me   me   … me     al
                 nt 1   nt 2   nt 8   nt 1   nt 2   nt 8   inp  related  to  Internet  platforms  such  as  WeChat,  which
                                                       ut     indirectly serve the production activities of other industries
            Inte                                              through the input of intermediate products.
            rme
            diat  Y1   Y2   …  Y8   F1   F2   …   F8   Yl     In  this  paper,  WeChat's  output  employment  coefficient  is
            e               …                 …               introduced  to  reflect  the  relationship  between  WeChat's
            inp                                               contribution to GDP and its quantity of employment, that is,
            ut                                                to increase the quantity of labor force employed by WeChat
            Imp  M1    M2   …  M8   F1’   F2’   …  F8’   Ml   per unit of GDP.
            ort             …                 …
            Add                                               At  present,  there  is  a  lack  of  output  data  and  output
            ed   V1’   V2’   …  V8’                           employment  coefficient  of  WeChat  in  relevant  statistical
            valu            …                                 data, so it needs to be measured by relevant data. First of all,
            e
            Tot                                               find out 8 related departments corresponding to WeChat in
                                                              nine  categories  by  adjusting the  input-output  table  of  149
            al   Y1’   Y2’   …  Y8’
            inp             …                                 departments in 2017: Internet and related services, catering,
            ut                                                retail,  residential  services,  multimodal  transport  and
            Tot                                               transportation  agency,  education,  business  services  and
            al                                                health. Then, the WeChat output value of the department is
            emp  L                                            obtained by multiplying the WeChat adjustment coefficient
            loy                                               of the department by the output value of the department, and
            men                                               divided  by  the  urban  adjustment  coefficient.  Finally,  the
            t                                                 direct output of WeChat is obtained by summing the output
                                                              values of WeChat of various departments, that is, the direct
           As shown in Table 2, it reflects the input-occupancy-output   contribution of WeChat to GDP. The specific formula is:
           partially closed model of WeChat. There are 8 departments        
           corresponding to WeChat, and Y ,M ,V and Y  respectively                                      (7)
                                           ’
                                                 ’
                                         
                                            
                                                    
                                              
           represent  the  intermediate  input,  import,  added  value  and            = �           /      
                                                                                    
                                                                       
           total  input  of  the  sth  department,  while  the  final  demand       =1
           output  is F ,Y  and M ,  which  respectively  represent  the             represents  the  direct  output  value  of  WeChat;      
                            
                                  
                        
           total  output  and  total  input.  L  is  a  matrix  of r × n, which   represents  the  number  of  departments  collected  and
                                                                    
           indicates different types of employment, for example, r=1 by   corresponding  to  WeChat  output  according  to  the  input-
           gender, r=2 by age, and r=3 by educational qualifications.
                                                              output  table;        represents  the  direct  output  value
                                                                                
                                                              corresponding to each department;       represents the WeChat
           According  to  the  input-output  table  of  WeChat,  we  can   adjustment coefficient of each department, which is equal to
                                                                                               
                                                                ’
           deduce the direct consumption coefficient              ’  =   of the   the proportion of the added value of WeChat output in the
                                                             ’
           output  of  the  s'th  department  to  the  input  of  the  sth   product department to that of all production activities in the
           department. Then, the direct consumption coefficient matrix   department;      represents the urban adjustment coefficient.
           A of this model can be expressed as:
                                                              The  output  employment  coefficient  of  WeChat  shall  be
                               11       12  …       1    ’    further  calculated,  which  can  be  obtained  by  dividing  the
                                21       22  …      2    ’    direct  employment  number  driven  by  WeChat  calculated
                          = �               �         (5)
                           …    …    …    …                   above by  the  direct  output value  of WeChat.  The  specific
                                   1           2  …               ’  formula is:
           Then,  the  Lconticf  matrix (I − A)is  obtained,  and  the        =                          (8)
                                                                       
           complete consumption coefficient matrix B of this model is                
           deduced,  which  shows  the  indirect  influence  of  the  sth
           department's  participation  in  the  s'th  department's  output         represents the output employment coefficient of WeChat;
                                                                   
           activities through its input to the output of other departments,            represents the number of direct employment of WeChat;
                                                                     
           which can be expressed as:                                  represents the direct output value of WeChat.
                                                                    
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