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Wiiw 1 Joe Francois, Olga Pindyuk, Johannes Pöschl, Robert Stehrer WIOD Conference, 26. May 2010 WIOD Data on Trade in Goods: Data Issues and Patterns.

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Presentation on theme: "Wiiw 1 Joe Francois, Olga Pindyuk, Johannes Pöschl, Robert Stehrer WIOD Conference, 26. May 2010 WIOD Data on Trade in Goods: Data Issues and Patterns."— Presentation transcript:

1 wiiw 1 Joe Francois, Olga Pindyuk, Johannes Pöschl, Robert Stehrer WIOD Conference, 26. May 2010 WIOD Data on Trade in Goods: Data Issues and Patterns of Trade in Intermediates

2 wiiw 2 Data progress Starting point: trade data for 39 WIOD countries at HS 6-digit level Processing data – correspondences: -effort to adapt HS6-BEC correspondence -HS6 data matched with... NACE 3-digit industry correspondence use categories WIOD codes -problems with correspondences and product code orphans have been solved

3 wiiw 3 Data reporting issue Some issues of coverage exist (CZK, DNK – 1997) but we are in contact with the UN and the data will be available soon Missing trade -compare sum of HS 6-digit codes to total value reported 2007: 14%

4 wiiw 4 Missing trade 1/2 Not a minor problem: examples RUS, CAN, CHN ->40% of total export/imports for several years -not constant over time! Sum over all HS6 codes in percent of total trade reported

5 wiiw 5 Missing trade 2/2 Phenomenon not related to certain reporters but an issue for a lot of countries with missing imports > 15% (AUS, DEU, IND, JPN, KOR, MEX, NLD, …) Problem exists at HS 6-digit level as well as the SITC 5-digit level (for which it is mostly worse)

6 wiiw 6 How to find and adjust for missing trade? Proportional adjustment over all products not applicable since missing trade is most certainly related to specific products If a reporting country does not want the partner breakdown to be disclosed it can report trade with a confidential partner Special Categories Countries report both at the HS 6 and 2-digit level -data reporting should be better at the aggregated HS 2-digit level (less confidentiality issues)

7 wiiw 7 Two step approach 1. Step: i.Use trade with confidential partner Special Categories for each country at HS 6-digit level ii.Add it to the trade with partner countries according to the difference between the sum of trade at the HS6 level and total trade reported 2. Step: -Use HS 2-digit data to adjust HS 6-digit reported trade flows AUT RUS DEU Spec.Cat.

8 wiiw 8 Open Issues Transport costs included in imports lead to relatively higher share of countries further away -estimation gravity equations to reduce distortion in the trade data Re-Imports and Re-Exports (especially Chinas special administrative regions) Data availability Taiwan -Comext Data for EU15 available (EU27 since 1999), OECD -Gravity Equations Further comments / suggestions?

9 wiiw 9 Classification by end use categories Data at HS6 level -Correspondence to WIOD-BEC -Correspondence to NACE 3-digit (CPA?) What is WIOD BEC -HS6-BEC (UN) correspondence reclassified at HS6 level -Split into four categories: INTC, CONS, GFCF and MIX -Should meet purpose of bringing together trade data and SUTs Aggregation to products and end-use by country

10 wiiw 10 Stylized facts Patterns of trade by end-use category -Imports and exports Trends Specialisation structures Two-way trade in intermediates

11 wiiw 11 Structure of imports by end use category, 2006

12 wiiw 12 Structure of exports by end use category, 2006

13 wiiw 13 Correlation of export and import shares for intermediates trade, 2006

14 wiiw 14 Revealed specialisation in intermediates trade, 2006

15 wiiw 15 Changes in the shares of intermediates trade

16 wiiw 16 Changes in the share of intermediates trade, in percentage point differences, Changes driven by between or within shifts? Cross-country differences driven by within or between industry specialisation?

17 wiiw 17 Share of intermediate imports by industry, 2006

18 wiiw 18 Share of intermediate exports by industry, 2006

19 wiiw 19 Structure by industry Shares are highly correlated across countries in general However, significant differences when looking at individual industries Rather persistent over time -Though less so for some industries

20 wiiw 20 Share of two-way trade in intermediates

21 wiiw 21 Share of two-way trade in intermediates, 2006

22 wiiw 22 Share of two-way trade in intermediates by industry, 2006 Note: Mean over countries

23 wiiw 23 Comparisons to SIOT data Eurostat symmetric IO tables with import tables Note: p x p tables Shares of imported intermediates in total imports Comparison to trade data -Strong positive correlation -Hides significant differences in some cases

24 wiiw 24 Comparisons to SIOT data NACE 34 - Motor vehicles, trailers and semi-trailers

25 wiiw 25 Comparisons to SIOT data NACE 35 - Other transport equipment Note: Mixed category not yet considered

26 wiiw 26 Comparisons to SIOT data Differences -More industry specific than country specific -Not always consistent over time

27 wiiw 27 Summary Data issues and next steps (Re-)classification of end-use categories Stylized facts on trade in intermediates -Intermediates: Broad category -More distinct patterns for more detailed product groups (e.g. parts and components) and industry level Consistency with information from import tables -Country/industry specific deviations are hard to assess -Compare with import use tables (however hardly accessible)


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