Research Resource code：0000000259
Update date：Oct. 05, 2005
Nationwide Agricultural Products Price Analysis Support System (NAPASS)
青果物市況情報データベース NAPASS (Nationwide Agricultural Products Price Analysis Support System)
Research area (1)：
NAPASS is the system to search and to sum up the
information on the fruit and vegetable market,
which has been developed by the National
Agriculture Research Center since 1983 (Chief of
the development team is Nanseki). Since then,
its functions have been enhanced and improved.
The present version is Ver.4.5. NAPASS stands
for Nationwide Agricultural Products Price
Analysis Support System. It is sometimes called
simply 'the fruit and vegetable market data base.'
NAPASS allows you to search and to sum up
information such as items, markets, producing
areas or periods of time you need from huge amount
of the fruit and vegetable market database.
The data you get can also be saved, processed and
graphed on your computer.
NAPASS adopts a menu system, so that beginners can
easily operate it. The menu system is presented in
figures. With NAPASS, you can retrieve not only
data, but also analyze and sum up the facts and
figures of (1) each market's shipment according
to producing areas, (2) the market differentiation
nalysis of each producing area, and (3) the market
trend analysis and summing up. Recently, the joint
development of NAPASS for Web, which can be
accessed on the WWW (World Wide Web) has been
started. WWW is rapidly spreading on the internet,
which plays a major role in the Information
The shipments and prices surveyed on the fruit and
vegetable market database are round figures.
Especially, a price survey is conducted with a
sort of sampling. Therefore, the prices from the
fruit and vegetable market database are called
indicative prices (high, middle, low).
They are different from the so-called 'unit
prices' (= sales/units). According to the
statistical analysis of the Ota market in the
past, the indicative prices in the fruit and
vegetable market database tend to be higher than
the unit prices in the Annual Market Report*.
Roughly speaking, a 'low' of the indicative
prices is close to the unit price. (In fact,
it depends on items). Inversely, the shipment
in the fruit and vegetable market database tends
to be less than that in the Annual Market Report.
The statistical analysis of the figures (prices
and shipments) in the fruit and vegetable market
database and in the Annual Market Report shows a
great similarity in the fluctuation pattern.
(A correlation coefficient marks above 0.9 in
most items). Thus, the fruit and vegetable market
database gives you not only information about the
market on a daily basis but also the overview of
the annual or monthly market trend by summing up
Research field ：
User environment and conditions：
Required to be capable to connect to the Internet
User procedures and method：
and to access by a WWW browser.
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There needs no procedure for open experiment
version (usable data is limited), but procedure
for formal version is under consideration.
Qualification of user:
There needs no qualification for open experiment
version, but only governmental officers of
Ministry of Agricultural, Forestry and Fisheries
can use formal version now.
Restriction of use:
Any use besides research and study is prohibited.
Data shouldn't be re-distributed.