the ambivalent impact of coffee certification on farmers welfare a matched panel approach for cooperatives in central kenya certification is promoted to improve rural welfare through better market access and improved agricultural practices we compare net effects of fairtrade and utz certified coffee production in central kenya using a matched panel from 218 farm households that belong to three cooperatives and were visited twice in 2009 and 2013 we distinguish between effects at field farm household cooperative community and market levels both certification regimes improved coffee returns but fairtrade was more effective in coffee processing whereas utz contributed to productivity under stagnating coffee prices fairtrade farmers increased their coffee specialization while utz farmers reduced coffee areas but increased yield

socio economic characteristics and the effect of taxation as a health policy instrument abstract this paper analyses the quantitative effects of using economic instruments in health policy on the basis of price elasticities calculated from estimated demand systems the nutritional effects of various taxation schemes are compared for households in different age groups and social classes focusing on the consumption of saturated fats fibre and sugar it is generally found that the impact of price instruments is stronger for lower social classes than in other groups of the population with regard to age groups it is mostly the youngest that decrease their demand for saturated fat in response to price changes while it is mostly the middle aged who exhibit price responsiveness in their demand for sugar these groups are however not considered as key target groups for dietary regulation thus tax instruments may be effective in improving diets on average but the design of the instruments and the targeting of vulnerable groups with special needs should be done with care it should be noted that a tax on a single nutrient or food may have undesired effects on the demand for other food components though this may be avoided by introducing taxes subsidies on several food products simultaneously

asymmetric information and middleman margins an experiment with indian potato farmers west bengal potato farmers cannot directly access wholesale markets and do not knowwholesale prices local middlemen earn large margins pass through from wholesale to farmgate prices is negligible when we informed farmers in randomly chosen villages about wholesale prices average farmgate sales and prices were unaffected but pass through to farmgate prices increased these results can be explained by a model where farmers bargain ex post with village middlemen with the outside option of selling to middlemen outside the village they are inconsistent with standard oligopolistic models of pass through search frictions or risk sharing contracts

on the transmission of world agricultural prices two questions are asked about the relationship between domestic prices and world prices of agricultural commodities are variations in world prices transmitted to domestic prices domestic prices are regressed on world prices in various forms taking into account the possible effects of exchange rates and inflation the empirical analysis is based on data from the food and agriculture organization of the united nations for 58 countries from 1968 78 and for the countries of the european community from 1961 85 the results show that most of the variations in world prices are transmitted and that they constitute the dominant component in the variations of domestic prices

cost value and foreign market entry mode the transaction and the firm this paper compares and contrasts the mode of foreign market entry decision from the transaction cost internalization and organizational capability perspectives each of these perspectives operates at a different level of analysis respectively the transaction and the firm and consequently differs in the primary arena of attention namely transaction characteristics and the capabilities of firms in making the comparison a key distinction is made between the cost and the value aspects in the management of know how based on which issues pertaining to the transfer of knowledge within and across firm boundaries and the exploitation and enhancement of competitive advantage are closely examined the main purpose of this paper is to demonstrate the implications of a shift in frame from cost to value in the analysis of decisions related to firm boundaries entry into foreign markets is used primarily as a vehicle for the accomplishment of this purpose the paper shows how the value based framework of the organizational capability perspective radically and fundamentally shifts the approach towards the governance of firm boundaries and argues that even though tc internalization theory raises some valid concerns the organizational capability framework may be more in tune with today s business context some of the assumptions of the tc internalization perspective both direct opportunism exploitation of existing advantage and indirect preservation of the value of know how across locational contexts asymmetry between bounded rationality for transaction and production purposes are critically examined and questioned implications of a shift from a cost to a value based framework are discussed and the need for a shift in research focus is emphasized

globalization and rural poverty as is common in most contentious public debates different people mean different things by globalization some interpret it to mean the global reach of new technology and capital movements some refer to outsourcing by domestic companies in rich countries others protest against the tentacles of corporate capitalism or us hegemony economic military or cultural in this chapter i shall limit myself to interpreting globalization simply as openness to foreign trade and long term capital flows i shall ignore here the important issues arising from the devastation caused to fragile economies by billions of dollars of volatile short term capital stampeding around the globe in herd like movements or the substantial poverty reducing potential of international unskilled labour flows from poor to rich countries even if allowed in temporary and regulated doses

what do we learn about consumer demand patterns from micro data the aim of this paper is to assess the importance of using micro level data in the econometric analysis of consumer demand to do this we utilize a time series of repeated cross sections covering some 4 000 households in each of 15 years employing a number of different aggregation procedures we conclude that aggregate data alone are unlikely to produce reliable estimates of structural price and income coefficients however once certain aggregation factors as well as trend and seasonal components are included an aggregate model is not necessarily outperformed across all demand equations in terms of forecasting ability jel d12 c52 c31 the purpose of this paper is to develop a complete consumer demand system based on a time series of individual household data and to use it to measure the biases introduced into the study of consumer de mand behavior when aggregate data are used in place of the appropriate microeco nomic data we assess the suitability of ag gregate data through the impact on income and price elasticities and by evaluating the ability of both micro and aggregate based models to forecast aggregate consumer de mand the biases introduced by the use of aggregate data depend upon the way that household characteristics interact with in come and price effects and on departures of demand systems from linearity we explore the structure of microeconomic demand sys tems and the role of household characteris tics in the behavior of consumer demand both for the light this may shed on the pattern of future demands and for the im plications this behavior has for issues of aggregation consumer demand patterns typically found in micro data sets vary considerably across households with different household characteristics and with different levels of income we model this variability by making intercept and slope parameters in the budget share equations of our demand sys tem depend on household characteristics and by allowing for nonlinear total log expenditure terms in fact in theory consistent demand systems it is total ex penditure rather than disposable income that is allocated across goods we find that this general framework leads to a well specified data coherent demand system which is a quadratic extension of the popu lar almost ideal model of angus s deaton and john muellbauer 1980 the micro level estimates are shown to be sensitive to the treatment of endogeneity of total expen diture and to the specification of interaction terms with household characteristics in ad dition this specification is also shown to possess many attractive features for the evaluation of aggregate models

modal choice in a world of alliances analyzing organizational forms in the international hotel sector in the new management landscape where interfirm collaborations are common international companies today have fully owned operations and equity joint ventures as well as non equity alliances which in the service sector include franchising and management service agreements what determines the optimum choice of organizational mode the new syncretic theory developed in this paper combines concepts from transaction costs theory agency theory corporate knowledge and organizational capability theories to answer this question the paper then tests these concepts to explain the incidence of these modes in the international hotel business using canonical discriminant analysis as well as logistical regression using a generalized logit model the choice of entry mode is shown to be determined by both country or environmental variables as well as firm specific variables

antecedents and performance implications of channel integration in foreign markets this study enhances our understanding of channel integration in foreign markets on two fronts first the eclectic approach to foreign entry mode proposed by hill hwang and kim 1990 and kim and hwang 1992 is used to examine transaction specific organizational capability and strategic factors that influence channel choices in foreign markets empirical results based on survey of u s firms support the combined relevance of these factors in predicting the degree of channel integration second the study empirically examines the performance consequences of channel integration the results suggest that although the degree of channel integration does not have a direct influence on channel performance a contingency model based on the fit between the contextual factors and the actual channel choice is significantly related to performance in foreign markets

analyzing foreign market entry strategies extending the internalization approach a new fully integrated analysis of the foreign market entry decision is presented encompassing the choice between exporting licensing joint venturing and wholly owned foreign investment the choice between acquisition and greenfield investment is examined and so too are options based on subcontracting and franchising the model extends the insights of internalization theory and draws on concepts from the economics of industrial organization a special feature of the model is the distinction between investment in production facilities and investment in distribution facilities an important practical distinction that has been overlooked in much of the international business literature the strength of competition from indigenous rivals is emphasized as a determinant of entry strategy into both production and distribution

effects of an environmental tax on meat and dairy consumption in sweden this study evaluated the environmental impacts of introducing an environmental tax on meat and dairy consumption in sweden three meat products beef pork and chicken four dairy products milk fermented products cream and cheese and four pollutants generating environmental damage greenhouse gases ghg nitrogen ammonia and phosphorus were included in the analysis the unit tax applied corresponded to between 8 9 and 33 3 of the respective price per kg product in 2009 consumer response to the tax was calculated by econometric estimates of the almost ideal demand system aids for meat and dairy products using per capita consumption data and prices the results indicated relatively inelastic own price elasticities and high income elasticities for all meat products and slightly lower for dairy products simultaneous introduction of a tax on all seven products decreased emissions of ghg nitrogen ammonia and phosphorus from the livestock sector by up to 12

a life cycle consistent empirical model of family labour supply using cross section data this paper estimates a utility maximising model of the joint determination of male and female labour supplies using a sample of married couples from the u k family expenditure survey the emphasis is on the estimation of within period preferences that are consistent with intertemporal two stage budgeting under uncertainty however the approach we adopt provides an alternative method of estimating certain aspects of life cycle behaviour to the fixed effects constant approach of heckman and macurdy 1980 macurdy 1981 and browning deaton and irish 1985 moreover it relaxes some of the underlying restrictions that are implicit in these constant models under uncertainty

broadening the foreign market entry mode decision separating ownership and control this paper argues that the ownership and control dimensions of foreign market entry mode choice should be separated and that foreign market entry mode decisions should be expanded to business activities beyond production and distribution empirical results from the global hotel industry indicate that the transferability of the entrant s competitive advantages the local market s absorptive capacity and the availability of trustworthy local partners differentially affect the ownership and control dimensions of the entry mode decision

the hierarchical model of market entry modes in this study we propose and test a hierarchical model of market entry modes entry modes can first be viewed as equity based versus non equity based within equity based modes the choice is between wholly owned operations and equity joint ventures while within non equity based modes the choice is between contractual agreements and export empirically we demonstrate that there are factors that exert substantial influences at the equity versus non equity level but rather weak influences at the lower level of choice hierarchy the empirical results are based on a sample of over 10 000 foreign entry activities into china between 1979 to 1998 the findings provide supportive evidence for the hierarchical model of market entry modes

global strategy and multinationals entry mode choice this paper makes a case directed towards establishing the importance of global strategic considerations in choosing multinationals entry mode specifically it is our contention that beyond the environmental and transaction specific factors well established in the literature to affect the entry mode decision we should also consider the strategic relationship a multinational envisages between its operations across borders in reaching this decision after incorporating various global strategic variables into an eclectic framework of the factors influencing the entry mode choice this paper tests both the validity of the overall framework and the importance of each entry mode determinant in differ entiating among entry modes this is done based on ninety six multinational managers responses to a survey questionnaire concerning their entry mode decision experiences the results suggest that an express incorporation of global strategic variables into an analysis of the entry mode decision is warranted

the impact of tax reforms designed to encourage healthier grain consumption in this paper we simulate the effects of tax reforms aimed at encouraging healthier grain consumption we use a rich data set on household grain consumption in 2003 from the market research institute gfk sweden combined with information on the nutritional content of the consumption we estimate behavioral parameters which are used to simulate the impact on the average household of tax reforms entailing either a subsidy on commodities particularly rich in fiber or a subsidy of the fiber density in grain products our results suggest that to direct the fiber intake towards nutritional recommendations reforms with a substantial impact on consumer prices are required regardless of the type of subsidy implemented the increase in the intake of fiber is accompanied by unwanted increases in nutrients that are often overconsumed fat salt and sugar funding the subsidies by taxing these nutrients or less healthy commodities helps to counteract such developments

is price adjustment asymmetric evaluating the market share and marketing bottlenecks hypothesis abstract export price adjustment is asymmetric with respect to currency fluctuations in at least two circumstances if firms face capacity constraints in distribution networks or quantitative trade restrictions then pricing to market may be greater during depreciations of the exporter s currency if firms attempt to build market share subject to the threat of trade restrictions then pricing to market may be greater during appreciations of the exporter s currency this paper tests for asymmetries using panel data on german and japanese 7 digit industry exports the data seldom reject the hypothesis of a symmetric response of prices to exchange rates

welfare comparison under exact aggregation new econometric model of aggregate consumer behavior in the united states and to apply this model to the analysis of impacts of alternative economic policies on the welfare of individual consuming units the model incorporates time series data on quantities consumed prices the level and distribution of income and demographic characteristics of the population it also incorporates cross section data on the allocation of consumer expenditures for households with different demographic characteristics our econometric model is based on the theory of exact aggregation developed by lau 1977a c this theory makes it possible to dispense with the notion of a representative consumer in constructing models of aggregate consumer behavior one of the most remarkable implications of lau s theory of exact aggregation is that systems of demand functions for individuals with common demographic characteristics can be recovered uniquely from the system of aggregate demand functions using the individual demand functions we can analyze the impact of economic policy on consumer welfare

market attractiveness resource based capabilities venture strategies and venture performance abstract this research seeks to identify variables that should be related to venture performance it is hypothesized that both market attractiveness and resource based capabilities are directly related to new venture performance in addition specific resource based capabilities are hypothesized to be directly related to the competitive strategies chosen by a firm finally the fit between strategies and resource based capabilities is hypothesized to be related to venture performance the sample consisted of all manufacturing businesses sic codes 20 39 started or reorganized in the corporate form between 1980 and 1991 in nine counties in northwestern pennsylvania as identified by a major marketing research service of the 800 companies surveyed completed questionnaires were returned for 155 representing a 19 response rate the 155 responding companies had a median age of 5 years with a median of 15 employees the major products of companies in the sample included flour lumber household and office furniture plastic containers tools and dies ready mixed concrete pipe fittings measuring devices paint and varnish machine tools electroplate carbon and graphite composite products plastic laminated products circuit boards electronic components and parts for internal combustion engines in general the results confirm the validity of the measures of environmental and organizational characteristics as we have adapted them for new ventures as hypothesized perceived market attractiveness and the overall abundance of resource based capabilities were significantly related to venture performance also in two of three cases the evidence suggests that specific resource based capabilities are related to the firm s stated competitive strategies finally although the relationship between fit and performance is not supported in all cases the performance of the emerging manufacturing ventures included in this sample appears to be enhanced when resource based capabilities are supportive of a cost leadership strategy and when firms seeking to differentiate based on product and service quality have the resource based capabilities to support that strategy the results of this emerging research stream will make an important contribution to our understanding of the factors that impact firm performance for scholars the results provide additional information needed to develop comprehensive new venture performance models a clear understanding of the factors that have a strong influence on venture performance will enable practitioners to better identify viable business opportunities and academicians to provide potential business founders with tools to help them recognize opportunity in addition the identification of appropriate levels of abstraction will provide building blocks for future research that seeks to integrate environmental and firm level constructs

unfair trade the increasing gap between world and domestic prices in commodity markets during the past 25 years the early literature on international trade has debated extensively the constraints facing exporting countries in the major commodity markets this article goes one step further by suggesting that the final demand for these products can not have increased because the declines in world commodity prices were not transmitted or were transmitted imperfectly to domestic consumer prices in contrast upward movements in world prices were clearly passed on to domestic prices as a result the spread between world and domestic prices almost doubled in all major commodity markets during 1975 94 this asymmetry seldom discussed in the literature does not seem to be caused at least systematically by changes in trade and tax policies or factors such as transport processing and marketing costs this article argues therefore that a special effort should be made to better understand the transmission from world to domestic prices especially the role of large international trading companies that may have the capability to influence such spreads through one or several stages of processing in most major commodity markets

how do obese people afford to be obese consumption strategies of russian households this article investigates the extent to which russian households that differ in their members weight status adjust their food consumption differently when their economic resources change using household panel data from the russia longitudinal monitoring survey rlms from 1995 to 2005 we estimate total expenditure elasticities of food expenditures food quantities and food quality for normal weight overweight and obese households respectively the expenditure elasticities of quality derived for obese households for meat bread fruits and dairy were found to be 15 20 higher than those of normal households hence a change in economic resources causes obese households to adjust the quality of purchased foods significantly more flexibly than normal weight households only few differences were found for quantity and expenditure reactions our results emphasize that policies aiming to reduce obesity should consider deviations in consumption behavior of normal and obese consumers in terms of quality

simple tests of distributional effects on macroeconomic equations the presence of distributional effects in macroeconomic equations is shown to coincide with nonlinearity in micro behavioral relationships parameters estimated with aggregate data as in representative agent models contain distributional biases that are not measurable using aggregate data alone tests for distributional effects and other measures of the extent of aggregation problems are derived using distributional data observed over time significant distributional effects are noted for a model of annual aggregate u s commodity expenditure data a static model that accommodates individual heterogeneity is found to be statistically equivalent to a simply dynamic model that accommodates first order autocorrelation

global trade integration and economic convergence of developing countries gerschenkron hypothesized that lower income countries would tend to grow more rapidly than higher income countries and therefore that their average incomes would converge since that time the record indicates that the industrialized nations have had relatively slow growth rates while many less developed countries ldcs have had relatively rapid rates of growth although many others have had slower rates of growth and some have been negative furthermore the rates of growth have varied considerably during the four and one half decades since 1952 both among countries and within a country from one year to the next thus convergence remains an issue among development economists and others interested in the topic with frequent concern being expressed about a growing gap between average incomes in the moreand less developed economies of the world in this article we examine convergence and divergence due to differential rates of growth factors that affect growth the role of international trade in the process the policy frameworks that enhance or detract from growth and the research needs and opportunities for agricultural and resource economists a controversial aspect is the influence of trade on the process since most development economists tend to believe that more

tripling africa s primary exports what how where abstract income growth in africa that is high enough to achieve the internationally agreed development goals implies a rise in the region s per capita income by the early 2020s to about latin america s current level the paper shows that such income growth would be associated roughly with a nine fold increase in africa s manufactured exports but also with a tripling of its primary exports which in absolute terms would account for two thirds of the increase in the region s total exports focusing on the demand potential for such an increase in africa s primary exports the paper argues that rising global demand from sustained rapid growth in natural resource poor asian countries particularly china provides sizeable new opportunities for africa s primary exports in africa extractive industries are poised best to benefit directly from china s rising imports while exporters of agricultural products are more likely to benefit indirectly from rising world market prices associated with asia s growing prim

a resource based theory of the firm knowledge versus opportunism this paper develops a resource based knowledge based theory of the firm its thesis is that the organizational mode through which individuals cooperate affects the knowledge they apply to business activity we focus on the polar cases of organization within a firm as compared to market contracting there will be a difference in the knowledge that is brought to bear and hence in joint productivity under the two options thus as compared to opportunism based transaction cost theory we advance a separate yet complementary answer to the question why do firms exist our aim is to develop an empirically relevant and complementary theory of why firms are formed a theory based on irreducible knowledge differences between individuals rather than the threat of purposeful cheating or withholding of information we assume limited cognitive abilities on the part of individuals bounded rationality and assume that opportunistic behavior will not occur the latter allows us to determine whether resource based

the welfare effects of health based food tax policy this paper examines the effects of health oriented food tax reforms on the distribution of tax payments food demand and health outcomes we offer an illustration of how one can take into account the uncertainty related to both demand estimation and health estimates and to produce confidence intervals for the overall health effects instead of only point estimates taxation of sugar could lead to a statistically significant reduction in both the incidence of type 2 diabetes and coronary heart disease the health effects appear to be most pronounced for low income individuals and the reforms may therefore reduce health inequality this effect undermines the traditional regressivity argument against the heavy taxation of unhealthy food

exchange rate pass through when market share matters the authors investigate the pass through from exchange rates to import prices when firms future demands depend on their current market shares they show that profit maximizing foreign firms may either raise or lower their dollar export prices when the dollar appreciates temporarily i e the pass through may be perverse and that current import prices may be more sensitive to expected future exchange rates than to current exchange rates they present evidence that suggests the behavior of expected future exchange rates may provide a clue to the puzzling recent behavior of u s import prices copyright 1989 by american economic association

goods prices and exchange rates what have we learned import prices typically change by a smaller proportion than the exchange rate between the exporting and importing country recent research indicates that common currency relative prices for similar goods exported to different markets are highly correlated with exchange rates between those markets this evidence suggests that incomplete pass through is a consequence of third degree price discrimination while distance matters for market segmentation borders have independent effects the source of the border effect has not been clearly identified furthermore there is little evidence yet to suggest substantial market power is implied by the observed price discrimination

modes of foreign entry a transaction cost analysis and propositions a frontier issue in international marketing is the appropriate choice of entry mode in foreign markets the objective of this paper is to offer a transaction cost framework for investigating the entry mode decision this framework provides 1 a theoretical basis for systematically interrelating the literature into propositions 2 propositions about interactions which resolve the apparently contradictory arguments advanced to date specifically the paper illustrates the feasibility of clustering 17 entry modes into the degree of control the mode provides the entrant proposes that the most appropriate i e most efficient entry mode is a function of the tradeoff between control and the cost of resource commitment advances testable propositions delimiting the circumstances under which each mode maximizes long term efficiency

exchange rate pass through abstract the resilience of trade balances of the major industrialized economies to changes in their exchange rates has evoked interest in the exchange rate pass through relationship so far there has not been a comprehensive survey of this literature the paper aims to fill this gap in two ways first it pieces together the theoretical literature on exchange rate pass through second it provides a critical survey of the empirical literature on exchange rate pass through emphasis is placed on the data and methodology employed in previous work this is done in order to guide future work in this growing area of research

choice between non equity entry modes an organizational capability perspective many studies have examined the choice between different types of equity and non equity modes however none has focused on the choice between different types of non equity modes that service firms employ routinely this study develops a theoretical framework based on the organizational capability perspective to explain the choice between two non equity modes franchising and management service contracts while previous studies are based on the premise that foreign market entrants choose a mode equity or non equity that offers them most control given their particular circumstances the premise of this study is that foreign entrants choose a non equity mode that in addition offers effective transfer of the firm s capabilities to the host country venture

demand for coffee in sweden the role of prices preferences and market power there is a widespread belief that consumer coffee prices are high relative to bean prices and that lower consumer prices would lead to substantial increases in bean exports from third world countries this issue is evaluated by analysing how retail prices preferences and market power influence coffee demand in sweden a demand function is estimated for the period 1968 2002 and used together with information on import prices of coffee beans to simulate an oligopoly model this approach gives estimates of the maximum average degree of market power and shows how coffee demand would react to reductions in marginal cost to its minimum level the maximum level of market power is found to be low but it generates large spreads between consumer and bean prices because the price elasticity has low absolute values moreover the impact of a price decrease would be small because long run coffee demand is dominated by changes in the population structure in combination with different preferences across age groups hence a change to perfect competition would only have a negligible effect on bean imports

estimation of complete demand systems from household budget data the linear and quadratic expenditure systems in this paper we explore two issues in empirical demand analysis the estimation of complete systems of demand equations using household budget data section i and the incorporation of demographic characteristics into such systems section ii although there are numerous studies which use time series data to estimate complete demand systems and many which estimate engel curves from household budget data there are virtually none which combine budget data from different periods to estimate complete systems since each budget study corresponds to a single price situation one might conjecture that estimation of complete systems would not be possible unless budget studies were available from a large number of periods this is incorrect in section i we argue that interesting complete demand systems can be estimated from a small number of budget studies despite the limited price variability represented in such data to demonstrate this we use budget study data for two periods to estimate a pair of related demand systems the familiar linear expenditure system les and a quadratic expenditure system qes a generalization of les in which the demand equations are quadratic in total expenditure the inclusion of demographic variables in the analysis of household consumption patterns is desirable because there are likely to be systematic differences in the consumption behavior of households with different demographic characteristics but the effects of demographic characteristics have seldom been studied within the framework of complete demand systems in section ii we propose translating as a general method for incorporating demographic variables into complete systems of demand equations this method has not previously been discussed as a general technique for bringing demographic variables into demand systems although it has been employed in several studies to improve the estimates of the les and the qes presented in section i we reestimate these two systems using translating to incorporate family size

environmental food taxes and inequalities simulation of a meat tax in sweden abstract this paper investigates the distributional effect of an environmental tax on meat in sweden if such a tax was to be introduced welfare effects are measured as compensation variation cv for multiple price changes where hicksian cross price elasticities household expenditures and price changes are included in the calculations results show that taxes on meat are almost neutral over households when expenditures on meat are used as welfare indicators and regressive if income is used this can be explained by the households similar shares of total expenditures on meat the households with the smallest income levels need to be compensated with 904 sek per person and year equivalent to euro 86 6 per year in the year 2009 exchange rate to feel that utility is not lowered if taxes on meat are introduced and the households with the highest income levels need to be compensated with 1141 sek euro 109 3 per person and year for the year 2009 these compensations correspond to 0 74 and 0 78 of total expenditures for the low and high income group respectively when instead comparing the compensation with income levels the effects correspond to 0 99 for the households with the smallest income levels and to 0 51 for the households with the largest income

competition in the swedish coffee market 1978 2002 abstract are multinationals exploiting their market power in national coffee markets by keeping consumer prices too high and thereby limiting demand for imports of coffee beans the purpose of this study is to address this issue by testing if there is market power in the swedish market for roasted coffee the market structure is typical of many consumer markets for coffee with four very large roasting companies two of which are multinationals plus many small ones to analyze the degree of market power an oligopoly model is estimated using market time series data the econometric approach is to first test for long run relationships between the variables with cointegration analysis and then to estimate a system of equations for demand and pricing behavior our key finding is that there is evidence of some market power in the short run but none in the long run

can targeted food taxes and subsidies improve the diet distributional effects among income groups this paper analyses distributional effects of revenue neutral tax reforms aimed at improving dietary quality and encouraging healthier grain consumption using data on household grain purchases we analyse both the impact on dietary quality and the tax incidence among income groups of vat reforms and excise duty reforms the vat reforms include subsidies of healthy products products labelled with the swedish national food administration s healthy symbol funded by increased vat on less healthy products the excise duty reforms contain a subsidy of fibre content funded by excise duties on either added sugar or saturated fat our results suggest that the vat reforms have a similar impact on dietary quality across all income groups with increases in fibre intake but also unwanted increases in the intake of nutrients frequently overconsumed fat salt and sugar the impact on dietary quality of the vat reforms is therefore difficult to evaluate with the exception of the lowest income group the excise duty reforms seem to have a positive health effect across all other income groups with increases in the intake of fibre and reductions in the intake of saturated fat sugar and added sugar for the lowest income group we find the highest increase in the intake of fibre but generally an increase in the intake of the other nutrients too the excise duty reforms also result in a more energy dense grain diet with increases in the intake of calories for all income groups both the vat reforms and the excise duty reforms appear to be progressive the lowest income group pays less food taxes and generally faces a lower overall post reform price level the income group that increases its tax payments most is the one with the highest income this is also the income group that faces the largest increase in the overall post reform price level

revisiting the revisited terms of trade will china make a difference in challenging the conventional wisdom at the time singer and prebisch posited a number of explanations for declining terms of trade of developing economies including both country and product specific factors over the past decade we have begun to witness a simultaneous process of price differentiation within commodities with the prices of some commodities increasing and within manufacturing with the price of many manufactures falling these price changes may reverse the decline in the terms of trade of commodity producers the entry of china into the global market has played an important role in this augmenting the demand for many hard commodities its role as an exporter of manufactures coupled with concentration in global buying may undermine the prices of many manufactures

quadratic engel curves and consumer demand this paper presents a model of consumer demand that is consistent with the observed expenditure patterns of individual consumers in a long time series of expenditure surveys and is also able to provide a detailed welfare analysis of shifts in relative prices a nonparametric analysis of consumer expenditure patterns suggests that engel curves require quadratic terms in the logarithm of expenditure while popular models of demand such as the translog or the almost ideal demand systems do allow flexible price responses within a theoretically coherent structure they have expenditure share engel curves that are linear in the logarithm of total expenditure we derive the complete class of integrable quadratic logarithmic expenditure share systems a specification from this class is estimated on a large pooled data set of u k households models that fail to account for engel curvature are found ro generate important distortions in the patterns of welfare losses associated with a tax increase

how vulnerable are arab countries to global food price shocks this paper presents new estimates of pass through coefficients from international to domestic food prices by country in the middle east and north africa the estimates indicate that despite the use of food price subsidies and other government interventions a rise in global food prices is transmitted to a significant degree into domestic food prices in many countries in the middle east and north africa although cross country variation is significant in nearly all countries domestic food prices are highly downwardly rigid the finding of asymmetric price transmission suggests that not only international food price levels matter but also food price volatility high food pass through tends to increase inflation pressures where food consumption shares are high domestic factors often linked to storage logistics and procurement have also played a major role in explaining high food inflation in the majority of countries in the region