Abstract
Using Qatar as a case study, we exploit a novel micro-data set for 102 raw agricultural imported commodities on a shipment-by-shipment basis over the period January 1, 2005 to June 30, 2010. The data comprise over half a million individual observations, with a very rich set of characteristic specifications. Several interesting initial results emerge from the analysis. First, we find evidence of import-price volatility far in excess of world price volatility across a wide spectrum of commodities. Second, supply origins for virtually all commodities are highly concentrated. In many cases, commodities are sole sourced. Third, although less so, concentration is evidenced among Qatari importing companies for certain commodities. Fourth, we notice anomalies that lead to inefficient shipping methodologies and associated increased costs. The paper concludes by providing an empirical illustration of hedonic price modeling for barley followed by guidance for future empirical research.
Acknowledgments
We would like to thank the editor and an anonymous referee for thoughtful and constructive comments which have substantially improved the paper. We are grateful to Fahad Al-Attiya (Executive Chairman of the Qatar National Food Security Programme), and Ahmad Ali Mohammad Al-Muhannadi, Ahmed Eisa Rashid Al-Muhannadi, Hassan Ali R.A. Al-Naimi and especially to Shahin Olakara (all affiliated with the CPGA, Qatar) for their generous assistance with the custom data used in this paper. We also thank Abdullah Alkhanji of CPGA for providing information related to ships characteristics. Safa Al-Ameri, Djihad Becetti and Mohamedou Abdelkerim provided excellent research assistance. This paper has benefited from the stimulating discussions with Elsayed Elssamadisy. All remaining errors are our own. The views expressed here are authors’ own and do not necessarily reflect those of the affiliated institutions.
Annex 1: list of commodities in the Qatar import micro-data set
HS Code | Description |
Chapter 2: Meat and edible meat offal | |
02011000 | Meat of bovine animals, carcasses and half carcasses, fresh or chilled |
02013000 | Meat of bovine animals, boneless, fresh or chilled |
02021000 | Meat of bovine animals, in carcasses or half carcasses, frozen |
02022000 | Meat of bovine animals, cuts with bone in, frozen |
02023010 | Meat of bovine animals, mince |
02041000 | Carcasses and half carcasses of lamb, fresh or chilled |
02042100 | Carcasses and half carcasses of sheep, fresh or chilled |
02043000 | Carcasses and half carcasses of lamb, frozen |
02044100 | Meat of sheep, in carcasses and half carcasses, frozen |
02044200 | Meat of sheep, cuts with bone in, frozen |
02044310 | Meat of sheep, mince, frozen |
02045012 | Meat of goat, frozen |
02045022 | Meat of goat, frozen |
02045032 | Meat of goat, frozen |
02071100 | Poultry, not cut in pieces, fresh or chilled |
02071200 | Poultry, not cut in pieces, frozen |
02071300 | Poultry, cuts and offal, fresh or chilled |
02071400 | Poultry, cuts and offal, frozen |
02072500 | Fowls not cut in pieces, frozen |
02072600 | Fowls cuts and offal, fresh or chilled |
02072700 | Fowls, cuts and offal, frozen |
02073300 | Poultry, not cut in pieces, frozen |
02011000 | Meat of bovine animals, carcasses and half carcasses, fresh or chilled |
02013000 | Meat of bovine animals, boneless, fresh or chilled |
02021000 | Meat of bovine animals, in carcasses or half carcasses, frozen |
02022000 | Meat of bovine animals, cuts with bone in, frozen |
02023010 | Meat of bovine animals, mince |
02041000 | Carcasses and half carcasses of lamb, fresh or chilled |
02042100 | Carcasses and half carcasses of sheep, fresh or chilled |
02043000 | Carcasses and half carcasses of lamb, frozen |
Chapter 4: Dairy produce; birds eggs; honey; edible products of animal origin elsewhere specified or included | |
04011030 | Long-life milk (of a fat not exceeding 1% by weight), in packing exceeding 1 L |
04011090 | Milk, other |
04012030 | Long-life milk, in packing exceeding 1 L |
04012090 | Milk, other |
04013030 | Long-life milk, in packing exceeding 1 L |
04013090 | Milk, other |
04021010 | Milk and cream for industrial purposes |
04021090 | Milk and cream, other |
04022110 | Milk and cream, for industrial purposes |
04022190 | Milk and cream, other |
04022910 | Milk and cream, for industrial purposes |
04022990 | Milk and cream, other |
04029110 | Concentrated, milk |
04029120 | Concentrated, cream |
04029910 | Concentrated, milk |
04029920 | Concentrated, cream |
04031000 | Yogurt |
04039010 | Butter milk (labnah) |
04051000 | Other butter |
04061000 | Fresh cheese (incl. whey cheese), not fermented, and curd |
04064000 | Blue-veined cheese |
04069020 | Cheese, solid or semi-solid cheese |
04070090 | Birds eggs, other |
04081900 | Birds eggs, other |
04089900 | Birds eggs, other |
04011030 | Long-life milk (of a fat not exceeding 1% by weight), in packing exceeding 1 L |
04011090 | Milk, other |
04012030 | Long-life milk, in packing exceeding 1 L |
Chapter 7: Edible vegetables and certain roots and tubers | |
07019000 | Potatoes, fresh or chilled |
07020000 | Tomatoes, fresh or chilled |
07031011 | Onions for food (green or dry rind) |
07032000 | Garlic, fresh or chilled |
07039000 | Leeks and other alliaceous vegetables, fresh or chilled |
07041000 | Cauliflower and headed broccoli, fresh or chilled |
07042000 | Brussels sprouts, fresh or chilled |
07049000 | Cabbages and other similar edible brassicas, fresh or chilled |
07051100 | Cabbage lettuce (head lettuce) |
07061000 | Carrots and turnips, fresh or chilled |
07070000 | Cucumbers and gherkins, fresh or chilled |
07082000 | Beans, shelled or unshelled, fresh or chilled |
07089010 | Beans |
07093000 | Aubergines (egg plants), fresh or chilled |
07096000 | Fruits of the genus capsicum or the genus pimenta |
07099010 | Pumpkins, fresh or chilled |
07099020 | Marrows and squash, fresh or chilled |
07099050 | Parsley |
07099060 | Coriander |
07131000 | Dried peas (Pisum sativum), shelled, whether or not skinned or split |
07132000 | Dried chickpeas (garbanzos), shelled, whether or not skinned or split |
07134000 | Dried lentils, shelled, whether or not skinned or split |
07135000 | Dried broad beans, shelled, whether or not skinned or split |
Chapter 8: Edible fruit and nuts; citrus fruit or melons | |
08041010 | Wet dates |
08041020 | Dried dates |
08044000 | Avocados, fresh or dried |
08045020 | Mangoes fresh |
08051000 | Oranges, fresh or dried |
08052000 | Mandarins (incl. tangerines and satsumas) clementine, wilkings, fresh or dried |
08054000 | Grapefruit, fresh or dried |
08055010 | Grapefruit fresh |
08061000 | Grapes, fresh |
08062000 | Grapes, dried (raisins) |
08071100 | Watermelons |
08071910 | Melon (muskmelon) |
08081000 | Apples, fresh |
08082010 | Pears, fresh |
Chapter 10: Cereals | |
10011000 | Durum wheat |
10019010 | Normal wheat |
10030000 | Barley |
10059010 | Golden corn |
10059020 | White corn |
10059090 | Other corns |
10063000 | Semi-milled or wholly milled rice, whether or not polished or glazed |
10064000 | Broken rice |
Chapter 12: Oil seeds; miscellaneous grains, seeds and fruits; and fodder | |
12141000 | Lucerne alfalfa meal and pellets |
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At the time of this research was undertaken, David Raboy was seconded as Chief Economist to the Qatar National Food Security Programme.
- 1
Streeten(1993) considered a country to be “small” if its population were less than 10 million people. Save for the UAE, the Arab States we consider have populations much smaller, in the 2–3 million range and therefore we refer to them as micro-states.
- 2
The collection of papers in Robinson (1960) remains a classic contribution to the theoretical analysis of micro-states. The theory of micro-states stresses the link between small size and suboptimality in terms of the minimum efficient scale of output, competition and efficiency. For recent empirical analyses on the economic performance of micro-states, see, e.g., Armstrong and Read (1995) and Easterly and Kraay (2000).
- 3
For example, the global food crisis of 2007–2008 triggered a ban on rice exports by India, which traditionally supplies over one-half of the rice consumed in the GCC countries (Shah 2010). As documented by Martin and Anderson (2010), export restrictions may have contributed as much as 35% to world rice prices and 25% to wheat prices during the 2007–2008 global food crisis.
- 4
The Economic Agreement Between GCC States, The Cooperation Council for the Arab States of the Gulf (GCC) Secretariat General, GCC Supreme Council, 22nd Session, 31 December, 2001, Muscat, Oman.
- 5
This was confirmed in a 2010 meeting with Ahmad Ali Mohammad Al-Muhannadi, chairman of the Customs & Ports General Authority, Qatar.
- 6
Ibid.
- 7
In particular, we employed two commonly used methods of detecting outliers in multivariate data. These are the (i) minimum covariance determinant estimator of location and scatter introduced by (Rousseeuw 1985) and updated by Rousseeuw and Driessen (1999) and (ii) the blocked adaptive computationally efficient outlier nominators (BACON) algorithm proposed by Billor, Hadi, and Velleman et al. (2000). Both the estimators perform relatively fast and allow one to quickly identify outliers, even on large datasets of tens of thousands of observations. Both estimators are available to implement as STATA commands.
- 8
Most of the information was obtained from World Shipping Register (www.e-ships.net), a leading company providing ships and shipping companies’ data with an outstanding number of ships, and shipping companies and detailed per-ship characteristics. Information on all other ships not covered by the World Shipping Register was obtained from personal visits to Customs & Ports General Authority, Doha, Qatar.
- 9
It is worth mentioning here that the incentive to under- or over-invoicing imports to reduce taxes or other duties is not relevant to the present context since most food items are exempted from import duties or are subject to low tariffs (maximum 5%) on certain products (meat, dairy) from specific locations (non-Middle Eastern countries such as Brazil or the USA). Furthermore, hitherto no national general sales tax exists in Qatar.
- 10
The country specific 12-month food price pass-through coefficients are Bahrain (0.349%), Kuwait (0.279%), Qatar (0.355%) and the UAE (0.413%).
- 11
Such imports are subject to strict Halal requirements in addition to SPS rules.
- 12
These include meat, dairy, fruits, vegetables and cereal commodities.
- 13
We thank the anonymous referee to bring this interpretation to our attention.
- 14
The n-firm concentration ratio,
, is a concentration indicator alternative to HHI, with n typically equal to 4 and 8. However, unlike the HHI, the
is not sensitive to the distribution of market shares among firms (Scherer and Ross 1990).
- 15
All unreported summary statistics are available from the corresponding author on request.
- 16
An alternative method for coding categorical variable is “orthogonal coding”. Pedhazur (1997, 340–409) demonstrates that the end results of multiple regression analyses of the same data coded by simple dummy coding, effect coding and orthogonal coding are identical. However, orthogonal coding permits the researchers more flexibility to examine more than simple omnibus tests, such as the complex coding type of contrast coding when a researcher wants to explore specific theory driven hypotheses about group differences among categories of a predictor variable (see Davis 2010). We thank the anonymous referee to bring this issue to our attention.
©2013 by Walter de Gruyter Berlin / Boston
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Artikel in diesem Heft
- Masthead
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- Identification of Market Power in the Hungarian Dairy Industry: A Plant-Level Analysis
- Cartels and Rent Sharing at the Farmer–Trader Interface: Evidence from Ghana’s Tomato Sector
- Research Article
- Understanding Challenges to Food Security in Dry Arab Micro-States: Evidence from Qatari Micro-Data
- Planning Marketing Channels: Case of the Olive Oil Agribusiness in Portugal
- (A)symmetry, (Non)linearity and Hysteresis of Pricing-To-Market: Evidence from German Sugar Confectionery Exports
- Oligopolistic Market Structure in the Japanese Pistachio Import Market
- Quality Differentiation with Flavors: Demand Estimation of Unobserved Attributes
- A Mechanism Design of Dispute Resolution Systems in a Regional-Free Trade Agreement
- Conflict over Cooperation: Why So Much Disagreement over the Proposed Dairy Market Stabilization Program?
- U.S. Brewing Industry Profitability: A Simultaneous Determination of Structure, Conduct, and Performance
- The Cooperative Yardstick Revisited: Panel Evidence from the European Dairy Sectors