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• Fresh Produce Retail Price Comparisons in Trinidad and Tobago

  29-34

  C. W. Ardon Iton

  Govind Seepersad

  Views:

  125

  As the competitive landscape of the food and grocery retailing sector in Trinidad and Tobago is being transformed and consumers are separated from producers, shoppers are more reliant on price/quality cues in making their purchase decisions. The purpose of this study is to identify the retail outlet with the lowest and or highest price for a selected number of fresh produce items, in an effort to direct shoppers to relatively cheap nutritious sources of fresh produce. ANOVA and the Games-Howell test were the analytical procedures used. The ANOVA results indicated that there is statistical difference for all the items at the different retail outlets – farmers’ markets, roadside markets, public markets and supermarkets.

  The Games-Howell results obtained indicated that the supermarket mean prices were the highest for all items. Shoppers who purchased pineapple at the farmer’s market instead of the supermarket in 2016 could have potentially achieved the greatest savings of $6.52/kg.

  JEL Classification: C12, Q13, M31

• Tests of differential diesel fuels in engine testing room

  59-65

  Ferenc Farkas

  Valéria Nagy

  Attila Bai

  Views:

  142

  The portion of oil could be estimated 33 % of global primary energy consumption in 2012 (BP, 2012) and its average price – beside the products produced from it as well - significantly increased, unlike the demand for transport which has been reduced. This tendency is expected to remain unchanged in the long run, therefore, there is a great importance for the variety of diesel fuel distributors, in comparison of the ratio value for each of them, and replacing them with biodiesel can be used in the comparison. We executed 3 dynamometer measurements performed to determine three different dealers purchased diesel oil, some economical examinations of the diesel oil retail price, and the use of biodiesel all based on the expected economic studies in the literature studies of extra fuel consumption values. The results of these tests indicate that the differences of consumption between diesel oils can be up to 5 %, the conclusion is that distinctions of diesel oil consumptions are almost the same when we tested the differences between diesel oil and biodiesel. This means we can reach the same result with a high quality biodiesel as with poor quality diesel oil. This also means that– below 20% of mixing ratio we can easily choose by prices alone. Between these prices and products ( D1, D2, D3), we can save 4.8% diesel oil by using D2, 6.2% diesel oil by using D3 compared to D1. There could be a little revolution variance (D2: 2.9-6%, D3: 4.9- 7.1%), but this variance is under 1% so it is negligible.

• Market trends and consumer demand for fresh berries

  11-14

  Kristina Sobekova

  Michael R. Thomsen

  Bruce L. Ahrendsen

  Views:

  413

  We present an analysis of markets for fresh strawberries, blueberries, blackberries and raspberries in the United States during 2008–2011. We use weekly panel data covering supermarket purchases in 52 cities. The primary goal is to estimate demand elasticities for fresh berries and thereby provide a better understanding of consumer behaviour in response to price changes and the nature of competition among these crops. We estimate fixed and random effects models for double log demand equations and a complete demand system, the Almost Ideal Demand System. The latter specification can be used to estimate demand relationships that conform to utility maximising behaviour. The elasticity estimates are very robust across the different specifications and estimation methods. This increases confidence in our findings and provides some assurance that choice of functional form or estimation method is not driving our results. We find that retail demands for all berry crops are in the elastic range and that the different berries are substitutes for one another. The demand for strawberries was the least elastic with an own price elasticity of –1.26 and blackberries were the most elastic with a demand elasticity of –1.88. Blackberry demand was also the most responsive to the prices of competing berry crops. The study provides clearer insight into markets for berries in the United States. In addition, it fills a gap in the present lack of up-to-date consumer demand elasticities for these crops and will be useful for growers, decision makers and consumers.