nonlinear pricing in an oligopoly market the case of specialty coffee firms that use nonlinear pricing may distort product characteristics away from their efficient levels this paper offers the first empirical study of this issue using data from a specialty coffee market i estimate a structural utility model to compute consumers benefits from changing products sizes i then compare the estimated benefits to cost data design distortions are relatively large for products not targeted to the highest demand consumers distortions decrease toward zero with drink size for products with the largest profit margins these results support some of the central predictions from nonlinear pricing theory including no distortion at the top

the relative valuation of caps and swaptions theory and empirical evidence although traded as distinct products caps and swaptions are linked by noarbitrage relations through the correlation structure of interest rates using a string market model we solve for the correlation matrix implied by swaptions and examine the relative valuation of caps and swaptions we find that swaption prices are generated by four factors and that implied correlations are lower than historical correlations long dated swaptions appear mispriced and there were major pricing distortions during the 1998 hedge fund crisis cap prices periodically deviate significantly from the no arbitrage values implied by the swaptions market the growth in interest rate swaps during the past decade has led to the creation and rapid expansion of markets for two important types of swap related derivatives interest rate caps and swaptions these over the counter derivatives are widely used by many firms to manage their interest rate risk exposure and collectively represent the largest class of fixed income options in the financial markets the international swaps and derivatives association isda estimates that the total notional amount of caps and swaptions outstanding at the end of 1997 was over 4 9 trillion which was more than 300 times the 15 billion notional of all chicago board of trade treasury note and bond futures options combined caps and swaptions are generally traded as separate products in the financial markets and the models used to value caps are typically different from those used to value swaptions furthermore most wall street firms use a piecemeal approach in calibrating their models for caps and swaptions making it difficult to evaluate whether these derivatives are fairly priced

do mergers increase product variety evidence from radio broadcasting mergers can reduce costs and alter incentives about how to position products so that theory alone cannot predict whether mergers will increase product variety we document the effect of mergers on variety by exploiting the natural experiment provided by the1996 telecommunications act we find that consolidation reduced station entry and increased the number of formats available relative to the number of stations we find some evidence that increased concentration increases variety absolutely based on the programming overlap of jointly owned stations we can infer that the effects operate through product crowding that is consistent with spatial preemption

estimating a model of strategic network choice the convenience store industry in okinawa this paper investigates a determinant of location choice for multistore retailing firms the trade off between the business stealing effect and the cost saving effect from clustering their own stores i present an empirical model of network choice by two multistore firms i use lattice theoretical results to address the computational burden of solving for an equilibrium in store networks the framework integrates the static entry game of complete information with post entry outcome data while using simulations to correct for the selection of entrants i present an application of the model to the case of the convenience store industry in okinawa island japan using unique cross sectional data on store networks and revenues i use parameter estimates to examine the impact of a hypothetical horizontal merger on store configurations costs and profits results suggest a retailer s trade off between cost savings and lost revenues from clustering its stores is positive across markets and negative within a market i find an acquirer of a hypothetical merger of two multistore firms would decrease its number of stores in suburbs but increase its number in the city center

trucks without bailouts equilibrium product characteristics for commercial vehicles the entry and exit of products rather than firms serve as the main equilibrating force in many markets so accurately predicting changes from a merger or bankruptcy should incorporate this behavior this paper estimates a structural model of the us commercial vehicle market and demonstrates the importance of allowing for endogenous product offerings in the context of the 85 billion automotive industry bailout in 2009 under alternate policies that facilitate an acquisition or liquidation of gm and chrysler product entry and exit moderate markup increases and output decreases by up to three quarters

interest rate swaps abstract using quotations from two interest rate swap dealers with different credit ratings aaa and a we examine the effect of dealers credit reputations on swap quotations and bid offer spreads the aaa offer rates are significantly higher than the a offer rates and the aaa bid rates are significantly lower than the a bid rates we also document the relation between swap rates and par bond yields estimated from london interbank offered rate libor and bid rate libid data we identify some of the problems in testing the implications of swap pricing theory

zero expenditures and the estimation of engel curves over the brief interview periods typical of budget surveys such as the u k family expenditure survey households recorded expenditures are liable to be misleading indicators of their underlying consumption most starkly a household may not be observed to purchase commodities that it nevertheless consumes this paper considers the implications of such measurement errors for the estimation of demand systems and derives a consistent estimator for the special case of linear engel curves

food preferences and nutrition in rural bangladesh t he dietary choice of households near subsistence levels of nutrient intake is one of obvious policy importance in many countries such as bangladesh national goals are set in terms of nutritional intake and there is heavy intervention in the markets for foods however little is known about the manner in which food preferences vary with food expenditure and nutrient intake the design of efficient programs to aid nutritionally deficient households in attaining minimal levels of nutrient intake requires information on all ownand cross price elasticities for both target and non target groups the net effect of a food price subsidy on the consumption of food nutrients cannot be predicted without knowledge of the complete elasticity matrix results presented below demonstrate that substitution effects can be so strong that the subsidization of certain foods quite often reduces nutrient consumption in this study demand equations for nine foods which allow for extremely flexible consumer price response are estimated from the individual budgets of 5 750 rural bangladeshi households estimation at the household level is preferred because it more readily permits the incorporation of household composition variables into the demand analysis such as household size occupation and employment status that are typically lost in aggregation there is also a greater range and variation in expenditure levels than found in grouped data this is of particular importance in the study of nutritional well being as it is the poorest households which are of special interest moreover the household sample provides sufficient degrees of freedom to estimate a simple varying parameter model which requires the estimation of 270 parameters previous econometric analysis of income class specific dietary choice has been limited and not altogether satisfactory pinstrup anderson de londono and hoover 1976 estimated complete sets of price elasticities for different income strata using frisch s scheme in order to study the impact of changes in relative prices on nutrient consumption their results are suspect because of the assumption of want independence necessary for this methodology to be valid alderman and timmer 1980 who were also concerned with studying the relationship between food price policy and nutrient intake by income classes econometrically estimated separate price coefficients for each income group by including slope dummy variables in their demand equations for rice and cassava in indonesia the inclusion of these dummy variables revealed surprisingly large differences in compensated price response across income groups although their results support the notion that poorer households respond differently to prices than the rich the limitations of their data constrained them to consider only two foods and to specify changes in price response which are discontinuous with respect to income i the formulation and estimation of the food demand equations is discussed in section ii below section iii presents the results of the estimation and discusses the nutritional implications of movements in relative food prices and other exogenous variables section iv summarizes our findings

weak separability and the estimation of elasticities in multistage demand systems the necessary conditions for multistage budgeting to be at least approximately justified are reviewed and the plausibility of these assumptions i e weak separability and low variability of price indices with utility level are discussed using no further assumptions simple relationships between expenditure and price elasticities in different budgeting levels are derived these results are applied to a three stage model for swedish food consumption and it is shown that the assumptions are not inappropriate restricting the analysis to the last stage of a multistage budgeting process is also shown to lead to considerable errors which could well have policy consequences

food quality changes and implications evidence from the rice value chain of bangladesh summary in dhaka the share of the less expensive coarse rice is shown to be rapidly decreasing in rice markets and it thus seems that the role of rice as only a cheap staple food is being redefined the increasing demand for the more expensive varieties is seemingly associated with a more important off farm food sector in particular milling retailing and branding as well as a transformed milling industry we further find that the labor rewards for growing different rice varieties are not significantly different and that farmers do not benefit directly from consumers increased willingness to pay for rice

private agri food standards implications for food policy and the agri food system abstract this paper provides a brief introduction to the evolution and nature of private food safety and quality standards highlighting the resultant impacts on the structure and modus operandi of supply chains for agricultural and food products and the challenges posed for processes of agricultural development it serves as an introduction to a series of papers that provide a comprehensive overview of the current state of knowledge regarding private food safety and quality standards in both an industrialised and developing country context in so doing it aims to provide a catalyst for further research on this rapidly evolving field of inquiry

do the urban poor face higher food prices evidence from vietnam abstract whether there is a poverty penalty in terms of food prices is unsettled in the literature after more than four decades of study unit values from household surveys suggest that prices vary with income while outlet surveys typically find food prices varying with store type but not with neighborhood income most outlet surveys are from rich countries with just one spatially limited study from a developing country in this paper we use especially collected food price data from metropolitan areas of vietnam to test whether the urban poor face higher food prices food prices in low income neighborhoods are 1 lower on average than in other neighborhoods unit values give a different answer to the question of whether the poor face higher prices and are not suited to answer such a question

the valuation of floating rate instruments abstract a framework for valuing floating rate notes is developed to examine the effects of 1 lags in the coupon formula 2 special contractual features and 3 default risk evidence from a sample of floaters indicates they sold at significant discounts while lags in the coupon formulas and other contractual features make these notes more variable they do not account for the magnitude of the discounts we conclude that the fixed default premium in the coupon formula of a typical note is inadequate to compensate for time varying default premiums demanded by investors who treat other corporate short term paper as close substitutes

currency swaps hedging and the exchange of collateral abstract a model of currency swaps is developed where swaps provide superior hedging capabilities under the swap two parties in effect lease assets that they own to one another for use as collateral creating supewrior loan collateral matching this superior matching is reflected in lower borrowing costs to both agents creating a dominant borrowing and hedging method the swap contract is self enforcing due to a mutual double bonding arrangement where each side has an interest in the continuation of the exchange relationship jel g2 f3

monetary integration and the cost of borrowing with european monetary union emu there was an increase in the adjusted spreads of euro area sovereign securities over germany corrected from the foreign exchange risk causing a lower than expected fall in borrowing costs the objective of this paper is to study the reasons for this increase and in particular whether the change in the price assigned by markets was due to domestic factors credit risk and or market liquidity or to international risk factors the empirical evidence suggests that it may have been a change in the market assessment of domestic both liquidity and default risk rather than international factors that caused the observed increase in adjusted spreads with monetary integration even though since market size scale economies have increased since emu their effect differs according to the size of the market

prices and quality effects in cross sectional demand analysis a conceptual clarification of the sources and meaning of cross sectional price variability is used to motivate a theoretical and econometric framework for the estimation of cross sectional demand functions quality effects are distinguished from supply related price variability to identify cross sectional demand for disaggregated food commodities an empirical application using data from the 1977 78 nationwide food consumption survey indicates that parameter differences resulting from a failure to adjust cross sectional prices for quality effects are likely to be small for relatively homogenous disaggregated food commodities in demand analysis with cross sectional household budget data it is usually assumed that prices are constant allen and bowley prais and houthakker george and king given this assumption engel functions are estimated where expenditure or quantity is regressed on income or total expenditures family size and other demographic characteristics the assumption that cross sectional price effects are absent or are captured adequately by spatial and temporal dummy variables has not been evaluated empirically whether cross sectional price effects can be treated in this manner has implications for the specification of cross sectional demand functions as well as the estimation of engel functions there is a considerable literature on estimating price elasticities with cross sectional data most of the applications utilize timeseries cross sectional data annual or quarterly household consumption surveys and

estimating consumption from expenditure data abstract most studies of distributional issues have focused on the distribution of income but the income information usually available suffers from well known deficiencies this paper explores an alternative approach to distributional analysis based instead on expenditure data in many countries including the united kingdom available household budget data provides information on expenditures only over a short period the problems that consequently arise in interpreting data of this sort are emphasised a general specification for the stochastic structure of expenditure data is presented and a procedure for estimating participant households underlying consumption from their observed expenditures developed and discussed

demand systems estimation with microdata a censored regression approach demand systems estimation increasingly makes use of household level microdata mainly to measure the effects of demographic variables data based on these household expenditure surveys present a major estimation problem for any given household many of the goods have zero consumption implying a censored dependent variable techniques which do not take this censored dependent variable into account will yield biased results we utilize a censored regression approach that is computationally simple consistent and asymptotically efficient the results are then presented and compared with those obtained using an uncensored technique

spillovers from modern supply chains to traditional markets product innovation and adoption by smallholders there is an emerging body of literature analyzing how smallholder farmers in developing countries can benefit from modern supply chains however most of the available studies concentrate on export markets and fail to capture spillover effects that modern supply chains may have on local markets here we analyze the case of sweet pepper in thailand which was initially introduced as a product innovation in modern supply chains but which is now widely traded also in more traditional markets using survey data from smallholder farmers and econometric techniques we show that sweet pepper cultivation contributes significantly to higher household incomes strikingly at this stage participation in modern supply chains does not lead to higher incomes than supplying sweet pepper to traditional markets however the results also indicate that missing land titles weak infrastructure conditions and limited access to information constituted serious constraints during the early phases of sweet pepper adoption such constraints need to be overcome so that smallholder farmers are better prepared for the prompt reactions needed under rapidly changing market conditions

derivatives regulation implications for central banks abstract we review aspects of derivatives markets that affect central bank operations we focus on how derivatives affect monetary policy and bank supervision and argue that derivatives have no material adverse impact on the conduct of monetary policy our analysis suggests that both derivatives users and dealers face relatively small default risks from derivatives systemic risk the risk of widespread default has been largely exaggerated policy debates have neglected incentives of employees the nature of this agency risk suggests that internal controls are more likely to reduce these problems than derivatives regulation

voluntary export restraints on automobiles evaluating a trade policy the authors evaluate the voluntary export restraint that was initially placed on exports of automobiles from japan in 1981 they evaluate the impact this policy had on u s consumer welfare firm profits and foregone tariff revenue from its initiation through 1990

the default risk of swaps we characterize the exchange of financial claims from risky swaps these transfers are among three groups shareholders debtholders and the swap counterparty from this analysis we derive equilibrium swap rates and relate them to debt market spreads we then show that equilibrium swaps in perfect markets transfer wealth from shareholders to debtholders in a simplified case we obtain closed form solutions for the value of the default risk in the swap for interest rate swaps we obtain numerical solutions for the equilibrium swap rate including default risk we compare these with equilibrium debt market default risk spreads swaps have been one of the most explosive and important innovations in international capital markets in the last 10 years in its simplest form a swap consists of an agreement hetween two entities called counterparties to exchange in the future two streams of cash flows in a currency swap these streams of cash flows consist of a stream of interest and principal payments in one cvtrrency exchanged for a stream of interest and principal payments of the same maturity in another currency in an interest rate swap they consist of streams of interest payments of one type fixed or floating exchanged for streams of interest payments of the other type in the same currency the two types of swap are shown in appendix 1 the economic importance of swap transactions is the fact that they can he comhined with deht issues to change the nature of the liahility for the borrower the sum of a hond issue and a currency swap gives a net liability stream which is equivalent to transforming the bond liability into a different currency a floating rate note combined with an interest rate swap results in a liability equivalent to fixed rate debt two issues have dominated the academic literature on swaps the first concerns the reasons for their use arbitrage of imperfections in capital markets was the original cause of their appearance price and henderson 1984 turnbull 1987 shows that lowering borrowing costs by a synthetic transaction involving a swap is not possible in a complete integrated capital market subsequent authors wall and pringle 1988 arak estrella groodman and silver 1988 smith smithson and wakeman 1987 observe

an economic analysis of interest rate swaps interest rate swaps a financial innovation in recent years are based upon the principle of comparative advantage an interest rate swap is a useful tool for active liability management and for hedging against interest rate risk the purpose of this paper is to provide a simple economic analysis of interest rate swaps alternative uses of and the appropriate valuation procedure for interest rate swaps are described the significant increase in both the levels and the volatilities of market interest rates since the late 70 s has resulted in substantially higher interest rate risks faced by business firms and financial institutions the problem and consequences of interest rate risk exposure are particularly serious for firms in which the duration of assets does not match the duration of the liabilities for instance most financial institutions and many corporations financed long term fixed rate assets with short term floating rate liabilities such firms lose when the shortterm interest rates in the market rise unexpectedly because for given fixed rates of return on their assets the short term interest costs that they have to pay rise with the market interest rates conversely these firms gain from an unexpected decline in short term market interest rates in recent years the introduction and the development of new financial products in the capital markets such as interest rate futures interest rate options and interest rate swaps represent logical responses to the increased need to reduce firms exposure to interest rate risk

mergers when firms compete by choosing both price and promotion enforcement agencies have a relatively good understanding of how to measure the loss of price competition caused by merger however when firms compete in multiple dimensions merger effects are not well understood in this paper we study mergers in industries where firms compete by setting both price and promotion and ask what happens if we mistakenly assume that price is the only dimension of competition to answer the question we build a structural model of the super premium ice cream industry where a 2003 merger between haagen dazs and dreyer s was challenged by the federal trade commission a structural merger model that ignores promotional competition underpredicts the price effects of a merger in this industry 5 instead of 12 about three fourths of the difference can be attributed to estimation bias estimated demand is too elastic with the remainder due to extrapolation bias from assuming post merger promotional activity stays constant instead it declines

upstream innovation and product variety in the u s home pc market this article investigates the welfare implications of the rapid innovation in central processing units cpus and asks whether it results in inefficient elimination of basic personal computer pc products i analyse a game in which firms make multiple discrete product choices and tackle challenges such as partial identification and sample selection estimation results demonstrate that the demand for pcs is highly segmented and that fixed costs consume a substantial portion of the per unit producer profit the estimated model implies that intel s introduction of its pentium m chip contributed significantly to the growth of the mobile pc segment and to consumer welfare the lion s share of the benefits to consumers was enjoyed by the 20 least price sensitive consumers i also find that the pentium m crowded out the pentium iii and pentium 4 technologies and that the benefits to consumers from keeping those older products on the shelf would have been comparable to the added fixed costs while total welfare cannot be increased by keeping older technologies on the shelf such a policy would have allowed the benefits from innovation to trickle down to price sensitive households improving their access to mobile computing

urban household demand for fresh fruits and vegetables in thailand 300 200 2550 abstract food systems are undergoing profound changes in developing countries particularly on fresh produce with specific quality and safety attributes an understanding of the demandpatterns and their underlying determinants are important in designing food policies and generating information for local supply actors the disaggregate demand parameters for fresh fruits vegetables that have different product and process attributes were estimated by using the two stage budgeting framework the methodology accounted for censored data the analysis is based on crosssectional data of 300 households in bangkok and 200 households in urban areas of chiang mai in 2007 the trend in domestic demand for fresh fruits vegetables is towards an emphasis on safety quality and convenience economic development along with higher household incomes and educational levels of consumers contribute to this tendency households are becoming more price responsive to fresh produce from modern supply chain sectors the entire food sector should adapt to changes in consumers preferences traditional retailers should create customer trust by adopting safety and quality standards and upgrading the quality attributes of fresh produce modern retailers should sustain own reputation and improve product lines by adopting premium standards policies and programs that foster income growth along with better education will spur demand for better quality products and lead to diversification in diets the government should encourage the development and adoption of credible standards and product and process certification schemes an information campaign to educate consumers on food safety and quality would expand the market for fresh produce and benefit farmers keywords fruit vegetable demand elasticity food safety almost ideal demand system

long term covered interest parity evidence from currency swaps abstract this paper constructs long term arbitrage conditions using a now well developed mechanism for hedging long term currency positions the currency swap using the arbitrage conditions bond yields denominated in different currencies are compared across the onshore markets of canada japan germany switzerland the united kingdom and the united states and within the euromarket the evidence indicates that long term financial capital is as mobile across these markets as is short term capital this appears to be the case both within the euromarket and across political jurisdictions

farmer participation in supermarket channels production technology and efficiency the case of vegetables in kenya supermarkets are gaining ground in agrifood systems of many developing countries while recent research has analyzed income effects in the small farm sector impacts on productivity and efficiency have hardly been studied we use a meta frontier approach and combine this with propensity score matching to estimate treatment effects among vegetable farmers in kenya participation in supermarket channels increases farm productivity in terms of meta technology ratios by 45 we also find positive and significant impacts on technical efficiency and scale efficiency supermarket expansion therefore presents opportunities for agricultural growth in the small farm sector which is crucial for poverty reduction in africa copyright 2012 oxford university press

mergers with differentiated products the case of the ready to eat cereal industry traditional merger analysis is difficult to implement when evaluating mergers in industries with differentiated products i discuss an alternative which consists of demand estimation and the use of a model of postmerger conduct to simulate the competitive effects of a merger i estimate a brand level demand system for ready to eat cereal using supermarket scanner data and use the estimates to 1 recover marginal costs 2 simulate postmerger price equilibria and 3 compute welfare effects under a variety of assumptions the methodology is applied to five mergers two of which occurred and for which i compare predicted to actual outcomes

the distributional effects of carbon based food taxes abstract mitigation policies have focused mainly on the energy and transport sectors but recent studies suggest that food related measures can also deliver cost effective emission reductions this paper evaluates the implications of levying consumption taxes on food products in spain based on their carbon footprint specific elasticities are estimated for the food demand system based on a dataset of around 20 000 households using a demand system model the results show that this policy can reduce emissions and at the same time help to change consumption patterns towards healthier diets for the first time in the related literature this paper also explores the distributional implications the results show that carbon based food taxation tends to be slightly regressive and can have more effect on specific social groups however that effect can be ameliorated if exemptions on some basic food products are introduced

monopoly with incomplete information recent theoretical research on principal agent relationships has emphasized incentive problems that arise when the parties involved are constrained by either asymmetric information or their inability to monitor each other s actions here we concentrate on the former constraint and consider the case of a single principal the monopolist the main contribution is to show that under a separability assumption strong conclusions can be drawn about the nature of optimal incentive schemes although the primary focus is on optimal quantity discounts in a monopolized market the results also shed light on related topics such as optimal income taxation and commodity bundling

throwing away a billion dollars the cost of suboptimal exercise strategies in the swaptions market abstract this paper studies the costs of applying single factor exercise strategies to american swap options when the term structure is actually driven by multiple factors using a multifactor string market model of the term structure we find that even when single factor models are recalibrated to match the market at every exercise date the exercise strategies they imply can be suboptimal based on estimates of notional amounts outstanding the total present value costs of following single factor strategies could be several billion dollars these results illustrate the importance of using well specified term structure models

measuring market power in the ready to eat cereal industry the ready to eat cereal industry is characterized by high concentration high price cost margins large advertising to sales ratios and numerous introductions of new products previous researchers have concluded that the ready to eat cereal industry is a classic example of an industry with nearly collusive pricing behavior and intense nonprice competition this paper empirically examines this conclusion in particular i estimate price cost margins but more importantly i am able empirically to separate these margins into three sources i that which is due to product differentiation ii that which is due to multi product firm pricing and iii that due to potential price collusion the results suggest that given the demand for different brands of cereal the first two effects explain most of the observed price cost margins i conclude that prices in the industry are consistent with noncollusive pricing behavior despite the high price cost margins leading firms are able to maintain a portfolio of differentiated products and influence the perceived product quality it is these two factors that lead to high price cost margins

hierarchic demand and the engel curve for variety ahstract the usual treatment of consumer demand theory assumes a solution to the demand equations with positive quantities of all commodities this paper characterises a class called hierarchic demand systems for which only a subset of commodities are in the purchased set the hierarchic linear expenditure svstem is used to illustrate interesting properties of such systems the empirical section shows how the number of commodities purchased expands with total expenditure both in aggregate and for commodity groups the data clearly establish the empirical importance of corner solutions and of the purchase decision in demand studies

nonlinear pricing with random participation the canonical selection contracting programme takes the agent s participation decision as deterministic and finds the optimal contract typically satisfying this constraint for the worst type upon weakening this assumption of known reservation values by introducing independent randomness into the agents outside options we find that some of the received wisdom from mechanism design and nonlinear pricing is not robust and the richer model which allows for stochastic participation affords a more general empirical specification we develop a multidimensional methodology for addressing this class of problems providing two important applications to nonlinear pricing first with nonlinear pricing by a monopolist the familiar nodistortion at the top result persists but in tandem with the surprising conclusion that there is either no distortion at the bottom or bunching second in a simple model of product differentiated duopolists competing with nonlinear pricing we show that generally the duopoly outcome is qualitatively similar to the monopoly outcome however when marginal costs are symmetric and competition is sufficiently intense distortions disappear and the equilibrium outcome takes a remarkably simple form efficient quality allocations with cost plus fee pricing

agricultural growth and economic development a view through the globalization lens this article re visits the age old proposition that agriculture growth contributes to overall economic development and asks whether the relationship still holds in an increasingly globalized world there is overwhelming empirical support for the above proposition indeed it is hard to find exceptions barring a few city states where sustained economic development has not been preceded by robust agricultural growth however there are a large number of countries that have witnessed neither agricultural growth nor economic development even in countries where agricultural growth has been significant dramatic inter regional differences persist this article examines the factors that contribute to or constrain the process of agricultural transformation does the process of globalization and the resultant changes in agrifood systems offer new opportunities for agriculture led growth or will it further marginalize excluded countries regions and groups the factors that cause exclusion are examined both in terms of globalization forces and in terms of domestic shortcomings in policies and governance policy interventions that attempt to reduce the costs of transition to a globalized agricultural system are explored including safety nets for those left behind

a framework to facilitate institutional arrangements for smallholder supply in developing countries an agribusiness perspective the industrialization of agriculture and the potential problem of small scale farmer marginalization calls for a fresh approach to the design of agribusiness supply chain arrangements in developing countries the objective of the paper is to contribute to a better understanding of institutional arrangements that can promote stable smallholder agribusiness contracting arrangements in a developing country context a case study approach incorporating a transaction cost framework is used to test whether trust can significantly change the contract characteristics of supply the results suggest that although the presence of trust can influence the contract characteristics of a supply arrangement it may not be significant because of other factors in a developing country context bearing this in mind a number of institutional arrangements are recommended in order to promote more stable contract conditions

demographic variables in demand analysis in this paper the authors discuss five procedures for incorporating demographic variables into theoretically plausible demand systems translating scaling and the gorman reverse gorman and implicit prais houthakker procedures these five procedures are used to incorporate a single demographic variable the number of children in a household into the generalized ces demand system using household budget data for the united kingdom for the period 1966 1972 excerpt

impacts of supermarkets on farm household nutrition in kenya summary many developing countries experience a food system transformation with a rapid growth of supermarkets we analyze impacts of supermarkets on farm household nutrition with survey data from kenya participation in supermarket channels is associated with significantly higher calorie vitamin a iron and zinc consumption we use simultaneous equation models to analyze impact pathways supermarket supplying households have higher incomes a higher share of land under vegetables and a higher likelihood of male control of revenues furthermore income and the share of land under vegetables have positive impacts while male control of revenues has negative impacts on dietary quality policy and further research implications are discussed

food safety and urban food markets in vietnam the need for flexible and customized retail modernization policies access to safe and healthy food is a crucial element of food security in vietnam the safety of daily vegetables is of great concern to both consumers and policymakers to mitigate food safety risks the vietnamese government enforces rules and regulations and relies strongly on a single approach for organizing food provision being modernizing retail by replacing wet markets with supermarkets in general reorganizing food provision in this way is increasingly considered to be a guarantee for food safety especially in urban settings with growing populations to assess the effectiveness of this induced retail modernization of the fresh vegetables market in vietnam s capital hanoi this paper examines for whom and under which conditions does this approach deliver the desired outcomes the survey data and interviews show that ongoing retail modernization in hanoi reaches only a minor segment of the population and drives a large group of shoppers into informal vending structures on the basis of five case studies this paper demonstrates how similar supermarket interventions can yield contrasting outcomes when they do not accommodate for differences in shopper population and do not adapt to variations in the urban conditions to reduce exposure to unsafe food particularly for poorer segments of the population we conclude that developing a flexible portfolio of retail modernization pathways and adopting a reflexive policy approach provide better impact and leverage as opposed to the current trend of promoting supermarkets as a single ideal type form of food shopping

diversification into horticulture and poverty reduction a research agenda summary horticultural produce and processed products from the developing world are becoming increasingly popular both in domestic and in international markets global production and exports are rising steadily however yield increases have been smaller than area growth and have been negligible or even negative in the least developed countries while experience shows that horticulture can offer good opportunities for poverty reduction because it increases income and generates employment care must be taken that small and poor farmers are not excluded from the opportunities in these market sectors in this article we argue that development agencies must put more emphasis on horticultural research and development especially in the following priority areas genetic improvement safe production systems commercial seed production postharvest facilities and the urban peri urban environment

interest rate swaps in an agency theoretic model with uncertain interest rates abstract this paper reconciles market participants claims that interest rate swap financing may reduce financing costs through comparative advantage with academic arguments questioning the existence of comparative advantage the findings suggest that the combination of short term debt and interest rate swap may reduce financing costs by allowing high risk firms to reduce agency costs without incurring interest rate risk

an empirical test of agency cost reduction using interest rate swaps abstract this paper tests a model based on wall s wall l 1989 journal of banking and finance 13 261 270 hypothesis of agency cost reduction using interest rate swaps we find a significant positive relationship between the risk of the firm and the reduction of agency costs measured by the continuously compounded excess return car of the firm our findings are consistent with wall s hypothesis and other theories of swap transactions and in explaining the existence and growth of the swap market

the demand for dairy products structure prediction and decomposition this article presents an analysis of the demand for dairy products first the structure of dairy product demand is estimated using the household food consumption survey data under the assumption of a two stage budgeting procedure a complete demand system for food incorporating demographic effects is estimated next using the demand relations estimated from cross section data prediction interval tests utilizing time series data are performed for milk and butter last factors affecting consumption are classified into economic and demographic effects and a decomposition of the causes of changes in demand over time is performed

a path dependent approach to security valuation with application to interest rate contingent claims abstract the last two decades have witnessed a tremendous growth in the volume of assets and liabilities whose cash flows depend in a variety of ways on the path of interest rates some of these including floating rate notes and swap agreements contractually base cash flows on current and past interest rates and contain caps floors and other more complex features others including mortgages many corporate bonds and time deposits are fixed rate instruments that contain embedded options such as those to prepay call or withdrawal the irregular exercise of these options causes cash flows to vary as time proceeds and interest rates rise or fall this paper develops a state contingent claims technique for valuing such securities it is derived from the option based model of breeden and litzenberger 1978 using the transition matrix approach of banz and miller 1978 particular attention is paid to valuing so called path dependent securities whose contemporaneous cash flows depend on the historical path of interest rates as well as their current level a detailed example is provided in which an adjustable rate mortgage is valued under a variety of economic and security specific assumptions

dynamic product positioning in differentiated product markets the effect of fees for musical performance rights on the commercial radio industry this article predicts how radio station formats would change if as was recently proposed music stations were made to pay fees for musical performance rights it does so by estimating and solving using parametric approximations to firms value functions a dynamic model that captures important features of the industry such as vertical and horizontal product differentiation demographic variation in programming tastes and multi station ownership the estimated model predicts that high fees would cause the number of music stations to fall significantly and quite quickly for example a fee equal to 10 of revenues would cause a 4 6 drop in the number of music stations within 2 1 2 years and a 9 4 drop in the long run the size of the change is limited however by the fact that many listeners particularly in demographics that are valued by advertisers have strong preferences for music programming publication abstract

a non parametric analysis of covered interest parity in long date capital markets abstract the financially innovative currency swap has elevated the international mobility of long term assets of interest is whether the covered interest parity condition now holds in these markets with the currency swap as the forward exchange risk hedge the empirical conclusions presented in the paper suggest that deviations from covered interest parity in excess of transactions costs are not rare yet while profit opportunities are not always short lived an analysis of the deviations in excess of transactions costs reveals that they diminish over time and eventually disappear jel f32

analysis of food demand in vietnam and short term impacts of market shocks on quantity and calorie consumption a complete demand system for vietnam was estimated using household survey data results showed that demand for rice with respect to prices and expenditure is relatively inelastic compared to other foods demand for food in general tends to be less elastic at higher levels of income and for urban households in the short term a market shock such as a 10 decrease in income or a 30 increase in rice prices forces households to spend a larger portion of their expenditure on rice at the expense of other foods low income households face a higher risk of undernourishment as their daily calorie intake is more negatively affected by the shocks than high income households the results suggest the importance of policies that provide necessary safety net programs for the poor

statistical models for zero expenditures in household budgets household budget surveys are an important source of data on consumer s expenditure not just for individual consumers but also for estimating national aggregates however it is a widespread finding that for certain commodities most notably tobacco and alcohol the estimate from the household survey falls short of the known consumption total calculated with some confidence from data on production imports exports and excise duties for example in the british family expenditure survey with which we shall largely be concerned total tobacco expenditure was underestimated in 1976 by 21 percent see kemsley redpath and holmes 1980 p 51 much of this understatement together with that on alcohol is thought to occur because of the design of the survey which excludes many persons amongst whom consumption of such items is thought to be atypically high e g prisoners hoteliers and their residents merchant seamen even so the possibility remains that some of the understatement is due to various types of misreporting by households included in the survey in this paper we consider a model in which the standard tobit specification tobin 1958 is supplemented by the operation of a simple binary censor the tobit model is essentially a linear regression model in which non positive observations of the dependent variable are replaced by zero we take this specification as our starting point but add a second censoring process that randomly replaces a fraction of the observations generated by the tobit model bv zeroes the combined model can serve as a representation of several types of

westernization of asian diets and the transformation of food systems implications for research and policy abstract rapid economic and income growth urbanization and globalization are leading to a dramatic shift of asian diets away from staples and increasingly towards livestock and dairy products vegetables and fruit and fats and oils while the diversification of diets away from the traditional dominance of rice with rising incomes is expected and observed current food consumption patterns are showing signs of convergence towards a western diet the diet transition is characterized by increased consumption of wheat temperate fruit and vegetables and high protein and energy dense food globalization and the consequent global interconnectedness of the urban middle class is the driving force behind the convergence of diets the rapid spread of global supermarket chains and fast food restaurants is reinforcing the above trends the growing demand for diet diversity cannot be met solely by the traditional food supply chain it requires the modernisation of the food retail sector and the vertical integration of the food supply chain in effect linking the consumers plate to the farmers plow as a consequence asian agriculture is on an irreversible path leading away from its traditional pre occupation with cereal crop production especially rice towards a production system that is becoming increasingly commercialized and diversified this paper describes the determinants and trends in the diversification and westernization of asian diets implications of the evolving demand trends for food supply and retail systems are presented the paper discusses the prospects for small farmer participation in the emerging food supply system with a particular emphasis on asian rice production systems finally the paper considers emerging challenges for food policy small holder welfare and agricultural research and development priorities

competitive screening under heterogeneous information we study the interplay between informational frictions and second degree price discrimination our theory recognizes that consumers differ in their tastes for quality as well as in the information they possess about available offers which leads to dispersion over price quality menus in equilibrium while firms are ex ante identical we show that their menus are ordered so that more generous menus leave more surplus to consumers of all valuations we explore the cross section of equilibrium menus and variations in market conditions to generate empirical predictions on prices qualities and markups across firms and within a firm s product line for instance more competition may raise prices for low quality goods yet consumers are better off as the qualities they receive also increase the predictions of our model illuminate empirical findings in many markets such as those for cell phone plans yellow pages advertising cable tv and air travel

the effect of satellite entry on cable television prices and product quality how has the entry of satellite television affected the pricing and product quality of incumbent cable firms programming packages i estimate a model in which firms compete over both price and product quality as determined by what channels are offered satellite entry typically causes cable firms to raise quality and lower price however in some markets cable optimally responds by raising both price and quality or by lowering both price and quality a counterfactual scenario that eliminates quality competition results in on average softer price competition and lower aggregate consumer surplus but greater surplus for consumers with weaker preferences for quality

supermarkets and food consumption patterns the case of small towns in kenya abstract this paper investigates the effect of supermarkets on food consumption patterns in urban kenya using cross sectional household survey data collected in 2012 to establish causality we selected study sites that differ in their supermarket access and employ instrumental variable techniques to allow for endogeneity of supermarket purchases we find that supermarket purchases increase the consumption of processed foods at the expense of unprocessed foods supermarket purchases increase per capita calorie availability which is linked to lower prices paid per calorie particularly for processed foods our results imply that supermarkets contribute to dietary changes commonly associated with the nutrition transition the effects on nutrient adequacy are less clear

demographic effects in demand analysis estimation of the quadratic expenditure system using microdata the purpose of this paper is to estimate a complete theoretically plausible system of demand equations on microdata using the rich detail of these data to investigate the impact of demographic variables on demand behavior the system which we estimate is the quadratic expenditure system qes introduced by howe pollak and wales we evaluate four methods for incorporating demographic variables into the demand system three of these procedures imply parameter restrictions while the fourth does not tests on the restrictions imply that for our data unrestricted estimation yields significantly greater explanatory power

sustainability standards gender and nutrition among smallholder farmers in uganda abstractsustainability standards are gaining in importance in global markets for high value foods while previous research has shown that participating farmers in developing countries may benefit through income gains nutrition impacts have hardly been analysed we use survey data from smallholder coffee farmers in uganda certified under fairtrade organic and utz to analyse impacts on food security and dietary quality estimates of instrumental variable models and simultaneous equation systems show that certification increases calorie and micronutrient consumption mainly through higher incomes and improved gender equity in certified households women have greater control of coffee production and monetary revenues from sales

supermarkets and agricultural labor demand in kenya a gendered perspective abstract many developing countries are experiencing a rapid expansion of supermarkets new supermarket procurement systems could affect farming patterns and wider rural development while previous studies have analyzed farm productivity and income effects possible employment effects have received much less attention special supermarket requirements may entail intensified farm production and post harvest handling thus potentially increasing demand for hired labor this could also have important gender implications because female and male workers are often hired for distinct farm operations building on data from a recent survey of vegetable farmers in kenya a double hurdle model of hired labor use is developed and estimated farmer participation in supermarket channels increases the likelihood of hiring labor by 20 and demand for hired labor by 61 a gender disaggregation shows that positive employment effects are especially pronounced for female laborers who often belong to the most vulnerable population groups rural employment generation can be an important vehicle for poverty reduction

do firms hedge in response to tax incentives there are two tax incentives for corporations to hedge to increase debt capacity and interest tax deductions and to reduce expected tax liability if the tax function is convex we test whether these incentives affect the extent of corporate hedging with derivatives using an explicit measure of tax function convexity we find no evidence that firms hedge in response to tax convexity our analysis does however indicate that firms hedge to increase debt capacity with increased tax benefits averaging 1 1 percent of firm value our results also indicate that firms hedge because of expected financial distress costs and firm size an increasing number of corporations use financial derivatives each year the international swaps and derivatives association reports that the notional value of outstanding otc swap contracts increased from 11 3 trillion in 1994 to more than 60 trillion by mid 2000 http 00www isda org this is interesting because financial theory tells us that corporate risk management enhances value only in the presence of costly market imperfections a number of empirical studies examine derivative holdings to identify which of the proposed theoretical incentives and imperfections lead to corporate hedging our paper adds to the hedging literature by testing whether corporations respond to two tax related incentives to hedge the incentive to reduce volatility thereby increasing debt capacity and the tax benefits of debt and the incentive to reduce expected tax liabilities by reducing the volatility of taxable income we also use a refined dependent variable to measure net

the food system transformation in developing countries a disaggregate demand analysis for fruits and vegetables in vietnam abstract food systems in developing countries are currently undergoing a rapid transformation towards high value products and modern supply chains while supply side aspects of this transformation have been analyzed previously issues of consumer demand have received much less attention this article analyses demand patterns for fresh fruits and vegetables in vietnam using household survey data and a demand systems approach demand for products from modern supply chains particularly supermarkets and non traditional imports is highly income elastic and the income effect is stronger than the impact of prices and supermarket penetration this highlights the importance of considering demand side aspects when projecting future trends our results imply a continued restructuring of the food sector in the further process of economic development

food standards certification and poverty among coffee farmers in uganda summary voluntary standards are gaining in importance in global markets for high value foods we analyze and compare impacts of three sustainability oriented standards fairtrade organic and utz on the livelihoods of smallholder coffee farmers in uganda using survey data and propensity score matching with multiple treatments we find that fairtrade certification increases household living standards by 30 and reduces the prevalence and depth of poverty for the other two certification schemes no significant impacts are found several factors that can explain differential impacts are discussed overly general statements about the effects of sustainability standards on smallholder livelihoods may be misleading

following up on smallholder farmers and supermarkets in kenya in many developing countries supermarkets are expanding rapidly this affects farmers marketing options previous studies have analyzed welfare effects of smallholder participation in supermarket channels from a static perspective using cross section data we develop a conceptual framework and use panel data to better understand participation and impact dynamics the analysis focuses on vegetable producers in kenya participation in supermarket channels is associated with income gains however many farmers have dropped out of the supermarket channel due to various constraints the initial income gains cannot be sustained when returning to the traditional market organizational support may be needed to avoid widening income disparities

the evolving role of agriculture in poverty reduction an empirical perspective abstract the role of agriculture in development remains much debated this paper takes an empirical perspective and focuses on poverty as opposed to growth alone the contribution of a sector to poverty reduction is shown to depend on its own growth performance its indirect impact on growth in other sectors the extent to which poor people participate in the sector and the size of the sector in the overall economy bringing together these different effects using cross country econometric evidence indicates that agriculture is significantly more effective in reducing poverty among the poorest of the poor as reflected in the 1 day squared poverty gap it is also up to 3 2 times better at reducing 1 day headcount poverty in low income and resource rich countries including those in sub saharan africa at least when societies are not fundamentally unequal however when it comes to the better off poor reflected in the 2 day measure non agriculture has the edge these results are driven by the much larger participation of poorer households in growth from agriculture and the lower poverty reducing effect of non agriculture in the presence of extractive industries

borrowing cost reduction by interest rate swaps an option pricing analysis abstract interest rate swaps generally involve two firms with different credit ratings a quality spread differential qsd is observed to exist at different maturities for firm debts with different credit ratings the quality spread differential allows two firms with different credit ratings to decrease their borrowing costs through interest rate swaps by utilising their comparative advantage in borrowing in different markets the credit ratings of firms are determined by credit risk factors such as leverage and volatility of earnings asset value this paper investigates the effect of the leverage and the volatility on the behaviour of risk premia between firm debts with different credit ratings by using the contingent claim analysis our results show that the quality spread differential can be explained by the differences in leverage and volatility thus two firms with different leverage and volatility of earnings asset value will benefit from interest rate swaps however it is found that the duration within which the qsd exists is limited by the values of the leverage and the volatility of two firms in conclusion this paper shows that interest rate swaps can help the firms to lower borrowing costs without necessarily relying on the arbitrage argument asserted by existing literature

impacts of world prices transmission to domestic rice markets in rural iran abstract this paper attempts to assess the degree to which iranian rural households have responded to the change in price of imported rice due to exchange rate unification and to examine the extent to which the policy has affected the economic welfare of various household income groups particularly the poor utilizing samples of 2472 households selected from national expenditure survey data of 2002 and 2003 armington and pass through elasticities were calculated as two measures of substitutability and are discussed separately for each household group in these areas the findings of this study indicate that domestic rice prices are associated differently with imported rice prices among the households however a price increase in imported rice that is mainly consumed by the poor worsens their position much more severely than for the rich people who mainly prefer domestic rice the findings contribute to the understanding of how price changes resulting from trade liberalization may affect various groups of households and the ways they respond to such changes in prices

supermarkets farm household income and poverty insights from kenya summary the expansion of supermarkets in developing countries may have important implications for poverty and rural development while previous studies have compared farm profits between participants and non participants in supermarket channels wider income effects have hardly been analyzed moreover most existing studies do not account for structural differences between the two groups we address these issues by using endogenous switching regression and building on a survey of vegetable farmers in kenya participation in supermarket channels is associated with a 48 gain in average household income which also contributes to poverty reduction to realize these benefits on a larger scale will require institutional support

endogenous product choice a progress report empirical models of differentiated product demand are widely used by both academics and practitioners while these methods treat carefully the potential endogeneity of price until recently they have assumed the number and characteristics of the products offered by firms are exogenous this paper presents a progress report on an ongoing research agenda to address this issue first it summarizes how the appropriate choice of orthogonal instruments can yield consistent estimates of own and cross price elasticities in the presence of endogenous product characteristics second it summarizes how to measure quality markups and the welfare consequences of endogenous product quality in u s cable television markets related papers and extensions to consider multiple product characteristics and dynamics are also discussed

impact of third party contract enforcement in agricultural markets a field experiment in vietnam we study the effect of alleviating the information asymmetry regarding product quality that is widespread in contracts between agricultural producers and buyers in developing countries opportunistic buyers may underreport quality levels to farmers to reduce the price that they have to pay in response farmers may curb investment thereby negatively affecting farm productivity in an experiment we entitle randomly selected smallholder dairy farmers in vietnam who are contracted by a large company to independently verify milk testing results results indicate that treatment farmers use 12 more inputs and they also increase their output significantly some wider research and policy implications are discussed

food safety issues and fresh food product exports from ldcs fresh food products have a high income elasticity of demand and few traditional trade barriers in high income markets as such they represent an important opportunity for less developed country ldc exporters fresh food product exports account for half of all food and agricultural exports from ldcs to high income countries but these products may be subject to greater food safety risks and potential trade barriers arising from sanitary regulation this paper reviews the challenges and issues facing ldcs in meeting food safety standards for export these issues include a the importance of fresh food product trade by region and the kinds of issues that arise from those products b the role of farm to table approaches and hazard analysis critical control points haccp in ensuring safety c the role of the public sector in ldcs in facilitating trade d the potential role of the sps agreement in resolving disputes and determining equivalency of standards between high and low income countries