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Survey Sampling Methodology in Official Statistics in Latvia Foreign Investment Business Survey

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Survey Sampling Methodology in Official Statistics in Latvia Foreign Investment Business Survey Janis Lapins Baltic-Nordic-Ukrainian Summer School on Survey Statistics – PowerPoint PPT presentation

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Title: Survey Sampling Methodology in Official Statistics in Latvia Foreign Investment Business Survey


1
Survey Sampling Methodology in Official
Statistics in LatviaForeign Investment
Business Survey
  • Janis Lapins
  • Baltic-Nordic-Ukrainian Summer School on Survey
    Statistics
  • Kyiv, August 23-27, 2009

2
Structure of the presentation
  • Introduction
  • BoP and data sources
  • Quarterly business survey on foreign investment
  • Annual business survey on foreign investment
  • Dissemination of data

3
Introduction
  • Statistics Department of the Bank of Latvia
    (Latvijas Banka, LB) since April 5, 1993
  • Balance of payments (BOP) responsibility of LB
    since 2000
  • Foreign investments business survey carried out
    by LB since 2001
  • Data compilation process (BOP, IIP, FDI, Foreign
    debt), development of methodology
  • Maintenance of the compilation system

4
Balance of payments
  • In economics, the balance of payments (BOP)
    measures the payments that flow between any
    individual country and all other countries.
  • It is used to summarize all international
    economic transactions for that country during a
    specific time period, usually a year.
  • The BOP is determined by the country's exports
    and imports of goods, services, and financial
    capital, as well as financial transfers.
  • It reflects all payments and liabilities to
    foreigners (debits) and all payments and
    obligations received from foreigners (credits).
  • Balance of payments is one of the major
    indicators of a country's status in international
    trade, with net capital outflow
  • (From Wikipedia, the free encyclopedia).

5
Balance of payments compiled at LB
  • Quarterly and annual
  • by BOPSY codes (by positions used in the IMF
    balance of payments statistics yearbook),
  • by country,
  • by type of industry (NACE code)
  • Monthly only few main positions (mainly for
    internal use)
  • IIP by country, by type of industry

6
Data sources for compilation of BoP
  • Bank of Latvia
  • quarterly and annual foreign investment survey of
    companies
  • MFI statistics
  • statistics on non-bank external payments (ITRS)
  • Financial and Capital Market Commission
  • aggregated data on investment in banks share
    capital
  • aggregated data on banks annual profit/loss and
    its distribution
  • Riga Stock Exchange
  • prices for companies shares quoted at the Stock
    Exchange
  • State Register of Enterprises

7
Quarterly business survey on foreign investment
data collected
  • Data source for FDI, portfolio investments, other
    investments and related accrued income flows of
    other sectors
  • Divided in three parts FDI in Latvia, FDI
    abroad, other foreign assets and liabilities
  • Country breakdown
  • Full reconciliation of positions and changes in
    positions reflecting net flows, price changes,
    exchange rate changes and other adjustments

8
Quarterly survey on foreign investment sampling
frame
  • Stratified simple random sampling is used
  • The sampling frame is built up using
  • Quarterly survey data of the previous year
  • State Register of Enterprises
  • Information obtained from the CSB
  • ITRS data
  • Annual survey data on foreign investment
  • Other sources (mass media, etc.)
  • The sampling frame is updated annually just
    before sampling (significant changes discovered
    during the survey year are updated as soon as
    they have been identified)

9
Quarterly survey on foreign investment
stratification
  • The activity indicator is calculated for each
    company in accordance with the BOPSY breakdown by
    taking the max transactions value either from the
    survey or ITRS data for the previous year
  • The companies are arranged in a descending order
    according to the activity indicator and divided
    into size groups
  • The target population is further stratified
    depending on the companys NACE

10
Quarterly survey on foreign investment sample
allocation
  • The Neymans optimum allocation over strata
    according to the activity indicator is determined
  • Some adjustments in the sample allocation are
    made to reach satisfaction quality demands for
    main domains of interest
  • Within each stratum the list of companies to be
    included in the sample is drawn by using the
    simple random sampling approach

11
Quarterly survey on foreign investment dealing
with non-response
  • Reminders by phone allow to reach near to 100 of
    response rate among the significant units
  • Response rate 95
  • Dealing with non-response
  • Big units imputation based on survey data on
    previous periods ITRS data (case by case)
  • Other units adjustment of weights

12
Response level, 4th quarter, 2008
13
Quarterly survey - estimation
  • HT estimates for totals
  • Unweighted survey data are used for country and
    NACE breakdown
  • Grossing up part of the survey data to the whole
    population is showed as Country not specified
    and Kind of activity not classified in output
    tables by country and by NACE breakdown

-
14
Annual survey on foreign investment why needed?
  • Sample design and the total sample size of the
    quarterly survey allows to reach the necessary
    quality of estimates anly for flows (and not for
    stocks). Therefore additional annual sample
    survey on foreign investments is carried out
  • From units not included in the sample of the
    quarterly survey another stratified simple random
    sample is taken as a sample for annual survey on
    foreign investment. Sampled companies are
    surveyed using a simplified questionnaire

15
Annual survey on foreign investment usage of
data
  • Data of the annual survey are used for
  • Production of high quality estimates of IIP
    annual positions of other sectors
  • Production (by combining of the annual IIP
    estimates with the estimates of quarterly flows)
    of quarterly estimates of IIP positions of other
    sectors at the end of quarters
  • Updating of the quarterly sampling frame

16
Usage of ITRS data
  • Data source for compilation of the monthly BoP
  • As a supplementary data source
  • For building of the sampling frame of the
    quarterly survey of foreign investments
  • Updating of the sampling frame during the survey
    year
  • For cleaning of quarterly survey data
  • For imputation

17
Dissemination of data
  • Monthly T30 business days
  • Quarterly last business day of the next quarter
  • FDI flows and positions by
  • country
  • kind of activity by country
  • inflow and outflow components

18
Dissemination of data
  • Quarterly and annual BoP
  • Published in Quarterly Bulletin Latvia's Balance
    of Payments
  • Latvia's Balance of Payments Statistics Database
    is available for users at http//www.bank.lv/eng/
    main/all/statistics/bop_stat/database/

19
Dissemination of data
  • Monthly BoP
  • Published in Monthly Bulletin Latvia's Balance of
    Payments (Key Items)
  • Since 15.06.2009 the statistical data on Latvia's
    Balance of Payments (Key Items) are integrated in
    the Latvia's Balance of Payments Statistical
    Database available at http//www.bank.lv/eng/main
    /all/statistics/bop_stat/database/

20
THANK YOU !
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