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					BSPS Migration activity: the
        results!

      Gemma Catney and Ludi Simpson

 Cathie Marsh Centre for Census and Survey Research (CCSR)
                   University of Manchester




       BSPS Annual Conference, Manchester, September 2008
          Migration biographies
• “more searching explanations of population
  movement than could be obtained from aggregate
  data” (Rowland 2003: 390)
   – Understanding perceptions, processes of migration decision
     making, migration behaviour, as a complement to quantitative
     studies, or as analyses in their own right
• Existing sources for migration biographies:
   – UK Census-based Longitudinal Studies
   – British Household Panel Study (UK Household Longitudinal
     Study)
   – Birth Cohort Studies
• Ours is a retrospective, quantitative longitudinal data set
      The value of biographical
  information for migration studies
• Ravenstein’s ‘laws’ were based on place
  of birth data from 1871 and 1881 British
  Censuses, and North American and
  European Censuses (JRSS 1885)
• His laws were a function of the data
  available.
• If other data had been to hand, would
  additional laws of migration have been
  suggested?
     Potential additional laws of
              migration
1. People tend to be either movers or
   stayers all their lives
2. One child returns to its area of
   upbringing
3. Leaving home determines lives
         How did we do?

• There were 159 delegates registered
  on Wednesday. Of this, the number of
  respondents was: 110

• Meaning we have a response rate of:
  69%
      Some summary statistics
Sex                    Male: 45
                       Female: 61
Average age            39

UK born                79
UK childhood           81
Foreign-born parents   Neither: 96
                       One: 9
                       Both: 3
                                     (n=110)
                            Migration
Average no. internal         0.51   • Of those who are UK-
moves in childhood
                                      born, 28% moved
Average no. international    0.25     abroad once or more
moves in childhood
                                      in their adulthood
Average no. internal         2.34   • Of those born outside
moves in adulthood
                                      the UK, 90% moved
Average no. international    1.37     abroad once or more
moves in adulthood
                                      in their adulthood
Average total number of      4.46
moves

                       (n= 110)
                     Proposed law 1:
       People tend to be either movers or stayers all
                        their lives
                                           Itchy feet?

                     14
                     13
                     12
                     11
                     10
Moves in adulthood




                      9
                      8
                      7
                      6
                      5
                      4
                      3
                      2
                      1
                      0
                          0   1   2           3          4      5   6   7
                                           Moves in childhood


                                      Pearson correlation: -0.155
              Proposed law 1:
People tend to be either movers or stayers all
                 their lives
                                                   Itchy feet?

                       12
                       11
                       10
                        9
 International moves




                        8
                        7
                        6
                        5
                        4
                        3
                        2
                        1
                        0
                            0   1   2   3     4    5      6     7       8   9   10   11   12   13
                                                       Internal moves


                                            Pearson correlation: -0.155
            Proposed law 2:
One child returns to their area of upbringing

• Of those who had a UK childhood, only
  5% made ‘local only’ moves, none of
  which were an only child (however, this
  excludes internal movers)
• No matching moves with parents’
  birthplace(s)
                            Proposed law 2:
    One child returns to their area of upbringing


                                      Sib_place_description
                            Data      Only       Eldest      Middle     Youngest        All
                Number of respondents         12         51         17        27      107
                     Number of moves          48        228         81       122      479
              Average number of moves        4.0         4.5        4.8       4.5     0.22


                                         Sib_place_description
                              Data       Only       Eldest     Middle     Youngest      All
Number of respondents with UK childhood           8         40         11        20     79
          Childhood returners, remaining          1         11          3         2     17
                              Proportion       0.13       0.28       0.27      0.10   0.22
            Proposed law 3:
      Leaving home determines lives
• Most ‘significant’ move
  – Most recent?
  – 1st in adulthood?
  – Furthest?
  – Abroad?
                  Proposed law 3:
            Leaving home determines lives
% if those whose most ‘significant’ move was:
Most               1st in            Furthest         Abroad
recent             adulthood

22.73              35.45             30.00            50.88

         (n=110)           (n=110)           (n=50)           (n=57)

Of those whose most significant move was
abroad (that is, 29 respondents):
Their total moves were 143, of which 100
(70%) were international
               Conclusions
• Substantive issues:
  – Law 1: People tend to be either movers or
    stayers all their lives
  – Law 2: One child returns to their area of
    upbringing
  – Law 3: Leaving home determines lives
• Looking forward to future national surveys:
  – UKHLS: migration histories a possibility
         Acknowledgements
•   BSPS participants
•   Anne Shepherd and BSPS Council
•   Susan Lomax
•   POPLA research group members

				
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