Slide 1
Marriage market
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette
Slide 2
The structure of the marriage market
(based on MIDAS)
No
Yes
Married?
person is ‘selected’
to find a partner
Match and link individuals
create a new household
Divorce?
yes
Divorced
Autumn School Dynamic MSM
No
Remain married
16-18 November 2015 | L-Esch-sur-Alzette
Slide 3
The matching routine
Females selected for the marriage market
Males selected for the marriage market
1
2
3
4
1
p(1,1)
p(1,2)
p(1,3)
…
2
p(2,1)
p(2,2)
p(2,3)
…
3
p(3,1)
p(3,2)
p(3,3)
…
4
…
…
…
…
5
6
…
e.g. age,
age difference,
…
5
6
…
p=partnership(♀x,♂y)=max{p(x,y|x)} of the remaining y
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette
Slide 4
Matching – structural form
 set1filter
 set2filter
 score
 orderby
 pool_size (optional argument)
 algo (optional argument)
 The result of the matching function is the id number of the matched entity
 The matching function at this point does not allow for macro’s or temporary
variables
 You should try out various matching orderings
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette
Slide 5
Rank_matching – structural form
 set1filter
 set2filter
 orderby1
 orderby2
 The result of the matching function is the id number of the matched entity
 The matching function at this point does not allow for macro’s or temporary
variables
 Matching is based on decreasing orderby1 and orderby2.
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette
Slide 6
After a couple is formed, a new
household needs to be created
 Use new() to create a new household
 ‘Entity name’
 filter
e.g.
- newhousehold: new('household', filter= ISFEMALE and not alone and
justcoupled)
- hh_id: if(justcoupled,
if(ISMALE, partner.newhousehold, newhousehold),
hh_id)
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette
Slide 7
Where there is marriage, there is
divorce…
 A couple divorces when one of the partners divorces
- to_divorce: divorce or partner.divorce
 In that case, the link between the partners is broken
- partner_id: if(to_divorce, UNSET, partner_id)
 And (we assume that) the man leaves the house
- hh_id: if(ISMALE and to_divorce,
new('household'),
hh_id)
This is a key decision (which should be checked), because the above setting
implies that children always remain with the mother after divorce.
Autumn School Dynamic MSM
16-18 November 2015 | L-Esch-sur-Alzette