Patterns of time use in Tanzania: how to make public investment in ...

- when accompanied by other activity/ies (simultaneous) and
- when not accompanied by other activity/ies (not simultaneous)
2 –the average time spent per day per person on the activity under scrutiny
was added up among subgroups (female-activity simultaneous, femaleactivity
non simultaneous, male-activity simultaneous, female-activity non
simultaneous), using personal weights, so as to obtain the total time spent on
a day on average.
In the dataset two variables are included ‘full_time’ and ‘mins2_24’.
‘full_time’ gives the actual duration of the activity whereas ‘mins2_24’ adjusts
the time reported in each slot in order for the day to add to 24 hours. To
detect simultaneity a variable which takes into account of discrepancies
between full_time and mins2_24 was created 12 .
The second measure which was used to take into account the simultaneity of
activities is the simultaneity ratio; this is computed as the simple ratio of the
‘full time’ spent on the activity under scrutiny over the ’24 hour minute’ time
spent on the same activity 13.
Overburdened and top decile definition
The overburdened are those who spend more time than average (among
participants) on a certain activity. We also calculated the top decile, which
roughly consists of the one tenth of the population who is most heavily
overburdened. We decided not to report results for the top decile of the
overburdened as this was often too small a group to generate any reliable
outcome.
Computation of total hours
In estimating the total number of hours spent on SNA and extended SNA
activities by the population aged 5 years and above in a year the following
procedure was followed:
- we took into consideration 8 subgroups of the population age 5 years
and above:
o Women rural poor
o Women rural non poor
o Women urban poor
o Women urban non poor
12 Small data errors exist but are few. For example, full-time should always be equal or bigger
than mins2_24; however this is not always the case. As a rule I considered the activity to be
carried out simultaneously with at least another one whenever min2_24 and full-time
diverge.
13 As respondents were interviewed for a different number of days mean per person were first
computed (using the full time and the 24 hour approach) and only then the means per day
per person per activity were added up over the subgroups.
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