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Measuring Market Integration in Mozambican Maize Markets: A Threshold Vector Error Correction Approach AgEcon
Alemu, Zerihun Gudeta; Biacuana, G.R..
The primary objective of this research was to measure the extent of market integration between major surplus and deficit maize markets in Mozambique namely, Chimoio-Maputo, Chimoio-Beira, Ribaue-Nampula, and Mocuba-Nampula. To achieve this objective, Threshold Vector Autoregressive models were applied. The choice of the model was motivated by unobservable transaction costs and the import ant influence that their presence may exert on equilibrium spatial price relationships. The following are some of the major findings of the study. Firstly, threshold values (i.e. estimates of transaction costs) are found to be correlated positively with distance and inversely with the condition of the roads connecting markets. Secondly, market integration analysis revealed...
Tipo: Conference Paper or Presentation Palavras-chave: Mozambique; Market integration; Maize market; Transaction cost; Threshold vector error correction; Crop Production/Industries; Marketing; C21; C22; D4; E3; Q13.
Ano: 2006 URL: http://purl.umn.edu/25657
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Volatile world market prices for dairy products - how do they affect domestic price formation: The German cheese market AgEcon
Weber, Sascha A.; Salamon, Petra; Hansen, Heiko.
Since the stepwise reduction of intervention prices combined with watered down conditions and suspended export refunds, respectively, the EU dairy industry faces new challenges regarding wild price fluctuations originally caused in third countries. In the past, the EU domestic market was insulated as far as possible from world markets. However, today global prices could affect prices even at the level of consumers, but more directly at the level milk producers. Volatility noticeable increased with the price peak in 2007, followed by the drop in 2008, and a new price boost in 2010. Additionally, reduced security in marketing of butter and skimmed milk powder led to higher processing share of cheese which is not only exported but also increasingly consumed...
Tipo: Presentation Palavras-chave: Price transmission; Cointegration; Granger-causality; Dairy; Risk and Uncertainty; C1; E3; E6; F3; Q1.
Ano: 2012 URL: http://purl.umn.edu/122542
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Testing the Order of Integration with Low Power Tests. An Application to Argentine Macro-variables AgEcon
Carrera, Jorge Eduardo; Feliz, Mariano; Panigo, Demian.
The low power of available econometric tests is an important problem in applied research on unit roots and related issues. Based on the principle of methodological triangulation, the problem should be analyzed from different points of view in order to increase the validity of the results. Following this approach a strategy to test the order of integration in time series is presented using a sequence of eleven consolidated tests. In this way it is possible to determine the persistence of shocks, to specify the best strategy for trend-cycle decomposition and to obtain additional information useful for public policies. As an application of the methodology, the integration properties in the main 14 Argentine macroeconomic variables are studied. A...
Tipo: Journal Article Palavras-chave: Unit root; Persistence; Cycles; Structural breaks; Argentine macroeconomic variables; Research Methods/ Statistical Methods; C3; C5; E3.
Ano: 2003 URL: http://purl.umn.edu/43989
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Prognoseleistung von Fruhindikatoren: Die Bedeutung von Fruhindikatoren fur Konjunk-turprognosen - Eine Analyse fur Deutschland AgEcon
Hinze, Jorg.
Das Papier untersucht die Rolle von Frühindikatoren bei der Erstellung von Konjunkturprognosen. Gegenstand der Analyse sind die Fragen: Welche Kriterien sollten Frühindikatoren generell erfüllen bzw. was sollten Frühindikatoren leisten? Inwieweit erfüllen die gängigen Indikatoren diese Anforderungen? Wie ist die Prognosegüte der verschiedenen Frühindikatoren zu beurteilen? Die theoretischen Überlegungen und ökonometrischen Untersuchungen kommen zu dem Ergebnis, dass die gängigen Frühindikatoren die in sie gesetzten Erwartungen nur eingeschränkt erfüllen können. Der Verlauf einzelner Frühindikatoren lässt keine eindeutigen Schlußfolgerungen auf die reale Wirtschaftsentwicklung zu und der Vorlauf der Frühindikatoren vor der realen Entwicklung beträgt...
Tipo: Working or Discussion Paper Palavras-chave: Konjunktur; Wirtschaftspolitik; Agricultural and Food Policy; C3; C5; E1; E3.
Ano: 2003 URL: http://purl.umn.edu/26253
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Recent Trends in Agricultural Land Prices in South Africa: A Preliminary Investigation Using Cointegration Analysis AgEcon
Obi, Ajuruchukwu; van Schalkwyk, Herman D..
The main objective of this paper is to report preliminary findings on the recent trends in agricultural land prices in South Africa against the backdrop of growing concerns over their rising levels. Given the important role of land prices, the impact such increases would have on significant national development efforts, including the on-going land reform programme and other aspects of agricultural restructuring, provide strong justification for this investigation. The cointegration approach was employed within a framework that allowed for both long-run and short-run dynamics of the relationships to be identified. Building on previous structural modelling of farmland prices in the country, and using much expanded time series spanning forty-nine years, it...
Tipo: Conference Paper or Presentation Palavras-chave: Land Economics/Use; C22; E3; Q15; Q18; Q24.
Ano: 2006 URL: http://purl.umn.edu/25234
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What Can we Learn from our Mistakes? Evaluating the Benefits of Correcting Inefficiencies in USDA Cotton Forecasts. AgEcon
Isengildina-Massa, Olga; Tysinger, David; Gerard, Patrick; MacDonald, Stephen.
This study investigated the magnitude of forecast improvements resulting from correction of inefficiencies in USDA cotton forecasts over 1999/00 to 2008/09 marketing years. The aspects of forecast performance included in this study were 1) bias and trends in bias, 2) correlation between forecast error and forecast level, 3) autocorrelation in forecast errors, 4) correlation in forecast revisions. Overall the results of this study demonstrated that some corrections of forecast inefficiencies, such as correction of correlation of error with forecast levels and correlation of error with previous year’s error resulted in consistent improvement of USDA cotton forecasts, while correction for correlation in forecast revisions did not benefit the forecasts....
Tipo: Conference Paper or Presentation Palavras-chave: Commodity; Forecast evaluation; Fixed-event forecasts; Government forecasting; Forecast improvement; Agribusiness; Demand and Price Analysis; E37; E3; Q13.
Ano: 2011 URL: http://purl.umn.edu/98811
Registros recuperados: 6
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