Figure 6-3. Methodology framework, poverty analysis
6.4 Data Matching
There are 57 sectors of production and consumption in the GTAP database. There are 356
categories for consumption and 117 categories for production in the third Lao Expenditure
and Consumption Survey (LECS4) from 2007/2008. Therefore, in order to link the results
from the GTAP model to the micro-simulation model, it is important to reconcile the data.
The reconciliation of data from LECS4 with the GTAP database was achieved in the
following way
17
.
6.4.1 Consumption and production
We used GTAP database version 7, which consists of 57 sectors; factor products included
land, capital, skilled labor and un-skilled labor. We matched consumption and production
from LECS4 to the GTAP database. In LECS4 there are 357 categories for consumption and
117 categories for production. Since the agricultural section in LECS4 does not contain the
value of sales and the cost of the agricultural products, we cannot use the information in this
section. However, the diary section of LECS4 records the monthly transactions of agricultural
income and costs. So, we have obtained information on agricultural income by using the
dairy section of LECS4 but it is possible that this income has been underestimated because
the reference period is monthly.
17
It is important to note that while this study reconciled sectors of consumption, production, wages and income,
it did not reconcile their value.
25
6.4.2 Labor
There are two types of labor in the Lao GTAP model: skilled labor and un-skilled labor.
Skilled labor has been defined by whether wage earners have completed at least primary
education. Unskilled labor has been defined by whether wage earners have not completed
primary education. Since each entry on wage incomes in LECS4 has an ID for each person
but does not include information on the industry, the industry in which a person is engaged
for the greatest number of days and hours has been chosen as the industry supplying the
waged income.
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