Section 3 discusses the importance of the SAM (Social Accounting Matrix) as a consistent and
flexible database for economic modelling to be used for the purpose of ensuring a better policy
analysis.
Section 4 ends the paper with some concluding remarks.
2. From a National Accounting Matrix (NAM) to a Social Accounting Matrix (SAM)
As will be shown, there exists a close correspondence between both the accounts and the cells of the
NAM and the SAM.
Let us consider each transaction (“T”) as a nominal flow in the economy, with which are associated
two indexes, characterizing its location in a matrical framework and representative of the row and
column accounts in which it is recorded: an income (the first) and the corresponding expenditure
(the second) - in accordance with the convention described in Section 1.
Table 1. The accounts and the “T” indexes of the NAM and the SAM
_____NAM_____ |
_____SAM_____ |
Description (SNA93; ESA95) | ||
account |
index |
account |
index | |
goods and |
0 |
products |
p |
shows how the available products are used |
production |
I |
activities |
a |
describes the transactions that constitute the |
primary |
II.1 |
factors of |
f |
shows how the incomes that accrue as a result of |
secondary |
II.2&3; II.4 |
current |
dic |
shows, on the one hand, how the balance of |
capital |
III. 1 |
capital |
dik |
records transactions linked to acquisitions of non- |
financial |
III.2 |
financial |
dif |
records transactions in financial assets and |
rest of the |
V |
rest of the world________ |
rw |
records transactions between resident and non- residentunits_______________________________________ |