Intra-Industry Trade in Agricultural and Food Products: The Case of Ukraine

We present an analysis of agricultural and food trade in Ukraine over the period 1996-2002 focusing on different aspects of intra-industry trade. We estimated Grubel-Lloyd and marginal IIT indexes to examine the relevance of intra-industry trade between Ukraine and its trading partners and the changes in nature of trade flows over time. The results indicate that the major part of agro-food trade is of the inter-industry type, and thus a product of underlying comparative advantages. The low level of index seems to be typical for primary sectors in comparison to industries with higher product differentiation. Also marginal IIT appears to be low, the structure of the changes in agro-food trade flows between Ukraine and its trading partners during the analyzed period is shown to be predominantly intraindustry. These results imply that the restructuring process, associated with trade liberalization of Ukraine on bilateral and multilateral level, will induce higher adjustment costs than in an intra-industry trade environment.intra-industry trade, marginal intra-industry trade, agro-food products, Ukraine, International Relations/Trade, F14, Q17,

Intra-industry trade in agricultural and food products: the case of Ukraine

The process of economic transformation in Ukraine is characterized by, among other things, a change in agricultural and food product trading patterns. Ukraine has remained a net exporter of agro-food products, but the total volume and worth, as well as the geographical structure of trade flows, has altered significantly, and further adjustments can be expected to take place in upcoming years. This paper examines Ukrainian agro-food trade, particularly focusing on different aspects of intra-industry trade (IIT), which is usually associated with low adjustment costs. To examine the development of IIT in agro-food products between Ukraine and its trading partners, two approaches are adopted. The Grubel-Lloyd Index is used to calculate the intensity of IIT and thus to determine its relative importance compared to inter-industry trade. IIT values estimated across separate product groups and for selected trading partners differ significantly and exhibit high variability over time, but generally the level of IIT is very low. The results show that the major part of agro-food trade is of the inter-industry type, and thus a product of underlying comparative advantages. Secondly, the paper examines changes in trade flows over time. For this purpose, different measures of marginal intra-industry trade are applied. Marginal IIT appears to be low, therefore, the structure of the change in agro-food trade flows between Ukraine and its trading partners during the analyzed period (1996-2002) is shown to be predominantly inter-industry, which implies potentially high adjustment costs. -- G E R M A N V E R S I O N: Der Transformationsprozess in der Ukraine ist unter anderem durch Änderungen der Handelsstruktur von landwirtschaftlichen und Nahrungsmittelprodukten charakterisiert. So haben sich das Gesamthandelsvolumen, die Warenstruktur sowie die geografische Struktur der Handelsströme bedeutsam geändert. Weitere Änderungen sind demnächst zu erwarten. Dennoch bleibt die Ukraine Netto-Exporteur von landwirtschaftlichen und Nahrungsmittelprodukten. Das Ziel von diesem Papier ist, die Landwirtschaft und den Nahrungsmittelhandel der Ukraine detailliert zu untersuchen. Hauptaugenmerk liegt dabei auf verschiedenen Aspekten des intrasektoralen Handels, welcher gewöhnlich mit niedrigen Anpassungskosten verbunden ist. Um dessen Entwicklung zu untersuchen, wurden zwei Ansätze verwendet. Zunächst nutzen wir den Grubel-Lloyd Index für die Bewertung der Intensität des intrasektoralen Handels. Herausgestellt werden soll die Bedeutung des intrasektoralen im Vergleich zu zwischensektoralem Handel. Das Niveau des intrasektoralen Handels, welches für Produktgruppen sowie für ausgewählte Handelspartner berechnet wurde, unterscheidet sich wesentlich und weist große Schwankungen im Zeitablauf auf. Insgesamt ist das Niveau aber sehr gering. Die Ergebnisse zeigen, dass der intersektorale Handel überwiegt. Dies wird durch komparative Vorteile verursacht. Danach untersucht die Arbeit außerdem die Änderungen der Handelsströme im Zeitablauf. Dafür wurden verschiedene Maße des marginalen intrasektoralen Handels angewendet. Die marginalen Indizes sind niedrig, was bedeutet, dass die Änderungen in den Handelsströmen zwischen Ukraine und ihren Handelspartnern während der untersuchten Periode (1996-2002) intersektoralen Charakter haben, und somit potenzielle höhere Anpassungskosten mit einschließt.Intra-industry trade,marginal intra-industry trade,agro-food products,Ukraine,Intrasektoraler Handel,marginaler intrasektoraler Handel,landwirtschaftliche und Nahrungsmittelproduktion,Ukraine

ЕДИНАЯ АГРАРНАЯ ПОЛИТИКА ЕВРОПЕЙСКОГО СОЮЗА – ПУТЬ СТАНОВЛЕНИЯ И ПРИНЦИПЫ ФУНКЦИОНИРОВАНИЯ

В данной работе отображены основные принципы и механизмы функционирования аграрной политики Европейского Союза. Предложенный вниманию широкого круга русскоязычных читателей дискуссионный материал не претендует на роль самого обширного и самого досконального источника информации касательно такой много- гранной сферы, как аграрная политика ЕС. Он, скорее, дает более-менее полный обзор аграрной отрасли ЕС, в особенности ее аграрной политики, и должен рассматриваться как отправная точка для получения дальнейшей информации и проведения конструк- тивной критики. -- E N G L I S H V E R S I O N: The following Discussion Paper depicts main principles and mechanisms of agricultural policy of European Union. The study is aimed to show the wide Russian speaking research community only a short historical background and few elements of current Agricultural Policy rules and should be seen as a starting point for further analysis and discussions.Европейский Союз,аграрная политика,реформа

Agriculture in the Face of Changing Markets, Institutions and Policies: Challenges and Strategies

Since the late 1980s, agriculture in Central and Eastern European Countries (CEECs) has been under considerable adjustment pressure due to changing political, economic and institutional environments. These changes have been linked to the transition process, as well as the ongoing integration into the European Union and the world market. Reduced subsidies, increased environmental and food quality demands, as well as structural changes in the supply, processing and food retailing sector call for major structural adjustments and the improvement of farmersâ managerial abilities. Though such changes always carry significant threats to farms, they also offer new opportunities for the farms' entrepreneurial engagement. Upcoming changes in the agricultural environment and their possible consequences for farm structures across Europe are thus still timely subjects. The objective of the IAMO Forum 2006 is to contribute to the success of agriculture in the CEECs, as well as their neighboring countries, in todayâs increasingly competitive environment. Concrete questions the conference focuses on are: What are the most suitable farm organizations, cooperative arrangements and contractual forms? How to improve efficiency and productivity? Where do market niches lie and what are the new product demands? This book contains 33 invited and selected contributions. These papers will be presented at the IAMO Forum 2006 in order to offer a platform for scientists, practitioners and policy-makers to discuss challenges and potential strategies at the farm, value chain, rural society and policy levels in order to cope with the upcoming challenges. IAMO Forum 2006, as well as this book, would not have been possible without the engagement of many people and institutions. We thank the authors of the submitted abstracts and papers, as well as the referees, for their evaluation of the abstracts from which the papers were selected. In particular, we would like to express our thanks to OLIVER JUNGKLAUS, GABRIELE MEWES, KLAUS REINSBERG and ANGELA SCHOLZ, who significantly contributed to the organization of the Forum. Furthermore, our thanks goes to SILKE SCHARF for her work on the layout and editing support of this book, and to JIM CURTISS, JAMIE BULLOCH, and DÃNALL Ã MEARÃIN for their English proof-reading. As experience from previous years documents, the course of the IAMO Forum continues to profit from the support and engagement of the IAMO administration, which we gratefully acknowledge. Last but not least, we are very grateful to the Robert Bosch Foundation, the Federal Ministry of Nutrition, Agriculture and Consumer Protection (BMELV), the German Research Foundation (DFG), the Haniel Foundation and the Leibniz Institute of Agricultural Development in Central and Eastern Europe (IAMO) for their respective financial support.Agribusiness, Community/Rural/Urban Development, Farm Management, Industrial Organization, International Development, Labor and Human Capital, Land Economics/Use, Productivity Analysis,

Femtosecond polarization shaping of free-electron laser pulses

We demonstrate the generation of extreme-ultraviolet (XUV) free-electron laser (FEL) pulses with time-dependent polarization. To achieve polarization modulation on a femtosecond timescale, we combine two mutually delayed counterrotating circularly polarized subpulses from two cross-polarized undulators. The polarization profile of the pulses is probed by angle-resolved photoemission and above-threshold ionization of helium; the results agree with solutions of the time-dependent Schrödinger equation. The stability limit of the scheme is mainly set by electron-beam energy fluctuations, however, at a level that will not compromise experiments in the XUV. Our results demonstrate the potential to improve the resolution and element selectivity of methods based on polarization shaping and may lead to the development of new coherent control schemes for probing and manipulating core electrons in matter

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at root s=13 TeV

Measurements of Higgs boson production cross sections and couplings in events where the Higgs boson decays into a pair of photons are reported. Events are selected from a sample of proton-proton collisions at root s = 13TeV collected by the CMS detector at the LHC from 2016 to 2018, corresponding to an integrated luminosity of 137 fb(-1). Analysis categories enriched in Higgs boson events produced via gluon fusion, vector boson fusion, vector boson associated production, and production associated with top quarks are constructed. The total Higgs boson signal strength, relative to the standard model (SM) prediction, is measured to be 1.12 +/- 0.09. Other properties of the Higgs boson are measured, including SM signal strength modifiers, production cross sections, and its couplings to other particles. These include the most precise measurements of gluon fusion and vector boson fusion Higgs boson production in several different kinematic regions, the first measurement of Higgs boson production in association with a top quark pair in five regions of the Higgs boson transverse momentum, and an upper limit on the rate of Higgs boson production in association with a single top quark. All results are found to be in agreement with the SM expectations.Peer reviewe

Search for lepton-flavor violating decays of the Higgs boson in the mu tau and e tau final states in proton-proton collisions at root s=13 TeV

A search is presented for lepton-flavor violating decays of the Higgs boson to mu t and et. The dataset corresponds to an integrated luminosity of 137 fb(-1) collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, B(H -> mu t) e tau) < 0.22(0.16)% at 95% confidence level.Peer reviewe

Search for a heavy Higgs boson decaying into two lighter Higgs bosons in the tau tau bb final state at 13 TeV

A search for a heavy Higgs boson H decaying into the observed Higgs boson h with a mass of 125 GeV and another Higgs boson h(S) is presented. The h and h(S) bosons are required to decay into a pair of tau leptons and a pair of b quarks, respectively. The search uses a sample of proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 137 fb(-1). Mass ranges of 240-3000 GeV for m(H) and 60-2800 GeV for m(hS) are explored in the search. No signal has been observed. Model independent 95% confidence level upper limits on the product of the production cross section and the branching fractions of the signal process are set with a sensitivity ranging from 125 fb (for m(H) = 240 GeV) to 2.7 fb (for m(H) = 1000 GeV). These limits are compared to maximally allowed products of the production cross section and the branching fractions of the signal process in the next-to-minimal supersymmetric extension of the standard model.Peer reviewe

Intra-Industry Trade in Agricultural and Food Products: The Case of Ukraine

We present an analysis of agricultural and food trade in Ukraine over the period 1996-2002 focusing on different aspects of intra-industry trade. We estimated Grubel-Lloyd and marginal IIT indexes to examine the relevance of intra-industry trade between Ukraine and its trading partners and the changes in nature of trade flows over time. The results indicate that the major part of agro-food trade is of the inter-industry type, and thus a product of underlying comparative advantages. The low level of index seems to be typical for primary sectors in comparison to industries with higher product differentiation. Also marginal IIT appears to be low, the structure of the changes in agro-food trade flows between Ukraine and its trading partners during the analyzed period is shown to be predominantly intra-industry. These results imply that the restructuring process, associated with trade liberalization of Ukraine on bilateral and multilateral level, will induce higher adjustment costs than in an intra-industry trade environment