Pollution abatement and productivity performance of regional Canadian pulp and paper industries

The performance of pulp and paper industries in four Canadian regions is compared based on the estimation of an input distance function, with and without pollutant outputs. Distance functions are techniques for the representation and estimation of multiple-output and multiple-input production technologies. They are quantity-based techniques. Non-marketed outputs such as pollutants can be easily incorporated into productivity analysis with the help of distance functions. This environmentally sensitive approach provides higher productivity growth estimates for all regions, indicating the need for adjusting conventional measures that ignore the non-marketed benefits of pollution abatement activities. The results also consistently indicate the presence of substantial differences in the regional levels of technical efficiency. Regional industries have not enjoyed similar rates of technological progress due to differences in their underlying structures. Productivity growth estimates for most regional industries remain weak or negative even after the recognition of pollution abatement efforts. Estimates of regional level costs of abatement for biological oxygen demand (BOD) and suspended solids (TSS) are provided.     

Credit Risk and the Demand for Agricultural Loans

This paper uses the lender–borrower relationship to provide insight into the impirical estimation of loan demand/contract curves for agricultural loans. Loan demand is shown to be determined partly by lenders'willingness to provide debt. The implicit solution to the loan contract curve in the lender–borrower relationship is derived from the cumulative probability distribution function of loan losses, which is the same measure used as the dependent variable in credit scoring models. Consequently, empirical estimation of loan demand can be obtained from credit scoring models. This paper presents the theory and then provides loan demand estimates and elasticities using Farm Credit Corporation cross-sectional and time-series data. Empirical estimates indicate the possibility of a backward-bending loan demand curve, which may indicate some credit ationing in agriculture.     

The efficiency of the Environmental Management Charge in the Cairns management area of the Great Barrier Reef Marine Park*

Using data from a survey of more than 1000 domestic visitors to the Northern section of the Great Barrier Reef (GBR) – predominantly those travelling on live‐aboard dive boats – this research investigates the (tax) efficiency of the Environmental Management Charge (EMC). The travel cost method (with a zero truncated negative binomial specification) is used to estimate the price elasticity of demand, and those estimates are used to estimate the deadweight losses, the losses in visitor numbers that could be ‘blamed’ on the EMC and the associated taxation revenues for different types of trips. The welfare loss for each dollar of revenue raised from the EMC was estimated at less than one per cent for each type of trip considered. The analysis therefore suggests that, for these types of trips in this part of the reef at least, the EMC is a very efficient tax – particularly when compared with other taxes. This has important implications beyond the GBR, particularly in countries who struggle to find sufficient funds to properly manage world heritage areas: taxes such as these may be a relatively efficient and equitable means of collecting such revenues.     

Scale Effects and Mark-ups in the US Food and Fibre Industries: Capital Investment and Import Penetration Impacts

Capital investment patterns and import penetration are often alleged to influence firms' costs and prices, and thus economic performance. We examine the impacts of these factors on measures of scale economies, input demand/composition, and market power in the US food and fibre industries. Flexible variable cost functions incorporating quasi-fixity of three categories of private (internal) capital and two external technological and trade (import) factors represent the cost structures of the two industries. Pricing equations, based on inverse demand functions including import prices, represent output decisions. Cost and demand elasticities constructed from this model indicate reduced manufacturing costs from technical and trade, scale and capital effects. This increased cost efficiency arises largely from materials savings in the textiles industry and reduced labour use in the food industry. Mark-up behaviour is exhibited for most of the sample period in the textiles industry, and neither industry appears heavily affected by import prices.     

PRODUCTIVITY GROWTH AND THE UK FOOD SYSTEM 1954-84

This paper uses input-output data bases to derive estimates of industry productivity growth rates in the UK for three discrete sub-periods. The results are then used to derive estimates of the within-industry productivity growth contributions to the changing efficiency over time of the economic system in meeting consumers' food requirements. The resultant estimates indicate the value of extending studies of agricultural productivity growth to encompass efficiency gains in industries that are upstream and downstream of the agricultural industry.     

SOME ECONOMIC ASPECTS OF PEST CONTROL IN AGRICULTURE1

This article deals with agricultural losses attributable to insects, diseases and weeds with estimates of percentage rates of losses in crops presented for both Canada and the United States. Analysis of the economic effect of potential elimination of losses in Canadian wheat and fresh apples are discussed. In general, the effect of elimination of losses by means of improved techniques depends upon the elasticity of demand of the individual commodity studied. The particular market position of Canadian wheat created an exception for this product. Emphasizing the need for further scientific investigation, subjects and methods for forthcoming research are outlined.     

Manure Applications and Nutrient Standards

Because of environmental concerns, many states are regulating animal manure applications to crops. A conceptual model is presented to describe manure demand for crop nutrient application under alternative regulatory standards. Demand relationships are incorporated into a spatial equilibrium model to estimate welfare costs of phosphorus and nitrogen regulatory standards for manure applications. Model estimates for Virginia indicate that regulatory standards for manure application achieve large reductions in excess nitrogen and phosphorus and result in 5–15% welfare losses excluding nonmarket environmental valuation.     

Economic Loss Due to Reputation Damage: A New Model and Its Application to Fukushima Peaches

Consumers have responded negatively to agricultural products originating from the Fukushima prefecture after the 2011 Fukushima Daiichi nuclear power plant incident. These consumers’ behavioural changes have caused substantial economic losses for the producers located in contaminated regions through reductions in market prices, consumption quantities and market shares. Remarkably, these losses are observed also for uncontaminated products, posing an opportunity for research in reputation damage. However, existing literature is very rare on empirical modeling of such losses. We utilise the Dixit–Stiglitz demand framework to derive a simple but efficient empirical model that uses market data to quantify reputation damage. This model estimates changes in the perceived quality of a product originating in contaminated regions in relation to those products originating from other competing regions. The model also measures subsequent loss in market share for those products grown in contaminated regions. In our application to Fukushima, results suggest that consumers’ valuation of peaches from Fukushima decreased dramatically (between 22.5% and 23.6%) in the year the nuclear accident occurred, but rapidly recovered in the following years. The results also show that the degree of impact varies across wholesale markets. Fukushima farmers lost about 13.1–18.9% of sales due to reputation damage. Estimates from our proposed models deliver meaningful information in the context of policy interventions such as transfer programmes financed by gainers to compensate reputation losses.     

Consumer Willingness to Pay Price Premiums for Credence Attributes of Livestock Products – A Meta‐Analysis

Livestock products, such as dairy and beef, are increasingly regarded as resource intensive and concerns are raised about animal welfare and environmental sustainability. As a result, consumer awareness of these issues has led to an increasing demand for products with high quality credence attributes (CAs) that cannot be directly experienced or identified. A number of empirical studies have attempted to estimate consumers' willingness to pay (WTP) for CAs, which represents the additional value placed on the benefits that they derive from those products. However, there are significant differences in these WTP estimates, mainly because both consumers' perceptions of CAs and the conditions of the studies vary. We conduct a meta‐analysis to examine consumers' WTP for different CAs of livestock products based on a systematic review of relevant studies. Meta‐regression models are used to control for the heterogeneity of WTP estimates and investigate factors that affect the estimation of WTP. Overall 555 estimates derived from 94 papers reporting WTP are included in this study. Meta‐regression results establish the presence of systematic WTP variation associated with types of products, CAs, and locations, though also indicate that WTP is subject to systematic variation associated with study methodology.     

建设用地差别化管理:理论解释与实证研究——以广西北部湾经济区为例

研究目的：分析新增建设用地指标管理的弊端,研究提高土地资源利用效率的办法。研究方法：理论模型法、实证分析法。研究结果：建设用地差别化管理优化了不同区域、不同部门、不同产业之间的土地资源配置效率,减少社会整体福利损失,实现了土地资源配置的帕累托改进。研究结论：建设用地差别化管理提高了土地资源利用效率,是对新增建设用地指标的调整和修正,是一种有价值的探索。     

The effects of a large discrete maize price increase on the distribution of household welfare and poverty in rural Kenya1

This study estimates the effects of a large discrete maize price increase on the welfare of a sample of rural Kenyan households. The usual first‐order welfare approximation formula is extended to a second‐order formula that allows for supply and demand responses to the price change. Results show that many rural households are not affected greatly by the price change, and there are about as many gainers as losers. However, these full sample results mask important differences across regions. Welfare gains generally take place in major production areas while losses are in areas where most households are net buyers of maize. Semiparametric methods are used to investigate the relationship between income and the size of the welfare effect, and poverty dominance techniques are applied to study the impacts of the maize price increase on rural poverty.     

DEVELOPMENTS IN THE FOOD MANUFACTURING AND DISTRIBUTIVE INDUSTRIES

This paper, in reviewing developments in food manufacturing and distribution, discusses trends in the overall demand for food, particularly the increase in demand for convenience foods. Along with this has gone an increased concentration of power in both the food manufacturing and distributive industries. The economic performance of these industries and the role of price competition is considered together with the possible consequences of polarisation of power between food manufacturers and distributors.     

FORECASTING THE FUTURE FOR TIMBER*

For each State a simple two-equation model of demand and supply was fitted to post-war data using two-stage least squares. Prior estimates of the housing coefficient were used to break collinearity problems in the demand function. Price elasticity of demand appears to be high and income elasticity moderate but declining with increasing income. The use of these estimates in forecasting is briefly outlined.     

Advertising,concentration and profitability in Greek food manufacturing industries

The conventional framework for cross-sectional studies of industrial organisation focuses on the hypothesised relations among structure, conduct and performance (SCP). This paper investigates these relationships for the food and beverage manufacturing industries in a European country, i.e., Greece. 3SLS method is used to estimate the parameters of the profitability, concentration and advertising model for a sample of 38 four-digit industries in 1994. The main results, which are in line with the relevant empirical work, show that profitability is determined by advertising, which, in turn, is affected by both profitability and concentration, while the latter is determined by economies of scale.     

The Farm Credit System as a Government-Sponsored Enterprise

This article examines the impact of government-sponsored enterprise status for the Farm Credit System on allocative efficiency in agricultural credit markets. The Farm Credit System was established originally to overcome market failures in these markets and to provide long-term funding at rates lower than private credit sources. Using a supply and demand model and an options model, the impact of subsidized interest rates is discussed. My results show that the default risk premium in interest rates is transferred from agricultural borrowers to taxpayers. There is evidence of deadweight losses and market distortions due to government-sponsored enterprise status for the Farm Credit System.     

Efficient Estimation of Hedonic Inverse Input Demand Systems

This article is concerned with efficient estimation of characteristics demand. We derive and estimate an inverse input demand system for quality characteristics by using 172,946 observations over 881 trading days in the Icelandic fish auctions. An improved estimation method based on an expanded random coefficient model is suggested as an alternative to the currently used two-stage method of Brown and Rosen . The estimates demonstrate the improved efficiency of the suggested method. A number of empirical results emerge, including a general increase in the demand for quality.     

Tracing the Effects of Agricultural Commodity Prices and Food Costs

We estimate a system of product and input-demand equations for food-processing industries to trace the links among farm commodity prices, food-processing costs, and food prices. Disembodied technical change, which likely reflects increasing consumer demand for convenience and product variety, has sharply reduced agricultural materials demand relative to most other food-processing inputs. This implies weakening impacts of farm price shocks on food prices. But improving quality and falling relative prices for agricultural inputs, in combination with increasing factor substitution, has counteracted these forces to encourage greater usage of agricultural inputs in food processing, and limit these trends.     

Social Costs of Supply-Restricting Marketing Boards

This article uses the concepts of economic surplus to assess the transfer and social cost effects of the national supply management programs for poultry products. The focus is on analytical and methodological issues and problems of identifying and quantifying these effects. It is apparent that different estimating methods and assumptions lead to considerable differences in the social cost estimates. Nonetheless, short-run losses in allocative efficiency are relatively minor compared to the transfer effects. However, the potential long-run losses in efficiency are substantial.
Cet article utilise les concepts de surplus économiques pour évaluer les effets de transfert et de coúts sociaux dans les programmes hationaux de gestion de I'approvisionnement en volailles. Nous porterons notre attention sur les questions analytiques et méthodologiques et sur les problémes d'identification et de quantification de ces effets. II est évident que des méthoaes devaluation et des hypothéses différentes entraínent des differences considé fOlOrables dans Vestimation des coÜts sociaux. Pourtant, lespertes à court terme dues à une mauvaise distribution sont relativement minimes par rapport aux effets de transfert. Mais les pertes à long terme, pertes potentielles en efficacité sont substantielles.     

Demand for Crop Insurance in Developing Countries: New Evidence from India

Determining farmers’ real demand for crop insurance is difficult, especially in developing countries, where there is a lack of formal financial sector integration and a high reliance on informal risk mitigation options. We provide some new estimates of farmers’ willingness‐to‐pay for insurance in the context of a large‐scale subsidised programme in India. We conducted a discrete choice experiment with agricultural households across four states in India, enabling us to estimate preferences for specific insurance policy attributes such as coverage period, method of loss assessment, timing of indemnity payments and the cost of insurance. Our results suggest that farmers do value crop insurance under certain conditions and some are willing to pay a premium for such coverage in excess of the subsidised rates they are currently required to pay under this programme. In particular, farmers value the assurances that they will receive timely payouts when they incur losses, and may not have a strong preference for the method with which losses are assessed. On the other hand, farmers are quite sensitive to coverage periods. Our baseline assessment shows that when optimised to farmer requirements, there can be a sizeable demand for crop insurance by developing country farmers.     

Welfare impacts of import controls on Botswana's horticulture

Botswana has, for the past two decades, used import controls (permits) to regulate horticultural imports, and thereby promote economic diversification through import substitution. This article estimates import demand equations to capture the impact of import controls on horticultural imports (oranges, potatoes, and onions) into Botswana, using data for 1974 to 2001. Parameter estimates are used to compute nominal protection rates (NPRs) and welfare effects. Model‐generated NPRs are estimated at 191%, 75%, and 109% for oranges, potatoes, and onions, respectively. Imports of oranges, potatoes, and onions declined by 32%, 29%, and 35%, respectively, due to the implementation of import controls. Over time consumer losses and quota rents rose while producer gains declined. Net social losses also increased, implying that import controls became increasingly burdensome. It is argued that import controls have not been very effective in promoting import substitution. The study is important for the trade liberalization debate in the Southern African Customs Union (SACU) and within the Southern African Development Community (SADC), where import permits and other nontariff barriers are pervasive, have proliferated, and are a major hindrance to intraregional trade.