Page 130 - Special Topic Session (STS) - Volume 4

STS571 Jaanus Kroon

-Estimation errors and
quality issues

Using credit and debit -High periodicity -Additional costs for a
card data from calibration survey (card
Northern European -Gives estimation on vs. cash, expenses and
Transaction Services total expenditures and visitors on “behalf of
indirect geo allocations
family”, etc.)
(NETS Estonia)
-Coverage (only one -Negative example
service provider in from neighbouring
Estonia) countries

-No administrative -“Noise” related to e-
burden commerce

-Low costs for compiler

-Long experience with
payments statistics
Introducing the -High periodicity -Lack of experience and
methodology based practice

on mobile network -Representativeness
roaming information (almost everyone has a -Undefined
mobile phone) cooperation model
with data providers
-Operational
information in time and -Additional costs for
space (including the calibration survey
geographical of mobile usage
allocation) patterns

-No major -Substantial IT
administrative burden resources needed for
data processing

Tartu and Positium OÜ to develop the new data collection methodology
and models. Methods for inbound travel were fixed in 2008-2009, and those
for outbound travel in 2009-2010. The complete methodology was revised and
updated in 2015. Mobile owners are a representative large sample whose
spatial behaviour and characteristics in time can be extended to the entire

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