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การประหยัดจากขนาดในองค์กรปกครองส่วนท้องถิ่น
และวิเคราะห์ศักยภาพการควบรวมท้องถิ่นขนาดเล็ก

Research Activities:
๏ A situational analysis of local public finance. First, we collect
secondary data from different agencies of all municipalities
and subdistrict administration (7775 units altogether) – as such
our database contain many useful information such as i) basic
information of local administration, such as population,
boundary area, population density, geographical characteristics;
ii)revenue-and expenditure statistics; the latter are
disaggregated into items, viz., personal expenditure,
investment expenditure, and service expenditure; iii) personnel
statistics, which refer to the number of local staff distinguished
by status (e.g., civil employment, permanently hired worker
and temporary worker)

๏ Hypothesis testing with respect to an “economies-of-scale”.
Specifically a model is formulated with comprise 3 equations
to reflect cost curve and to test “decreasing unit cost”. The
first equation refers to staff per 1000 population; the second
equation refers to per capita staff expenditure; and the third
equation, per capita service expenditure.They are treated as
dependent variables in the model and the relationships are
tested against a set of explanatory variables and estimated by
the robust regression. Economies-of-scale is evident if dy/dx <
0 over range of x up to a certain limit, where y=dependent
variable and x=scale of local administration, the minimum unit
cost is observed when dy/dx = 0 and beyond this scale, dy/dx
> 0 which indicates diseconomies of scale in the sense that
the unit cost tends to increase when the scale of local unit is
larger.

๏ From institutional economics framework, it is important to
recognize rules, regulations, and incentives which are
applicable to local administration and their personnels, these
include, the rule and process of amalgamation, transaction

XVIII สถาบันพระปกเกล้า