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Greenhouse Gas Abatement Policies and the Value of Carbon Sinks: Do Grazing and Cropping Systems have Different Destinies? AgEcon
Flugge, Felicity; Schilizzi, Steven.
The impact of two greenhouse gas abatement policies on two Mediterranean-type farming systems, grazing dominant and cropping dominant, is examined. The policies analysed are; an emissions taxation policy and an emissions restrictions policy. For both farming systems the restriction policy is found to be more effective and economically efficient than the carbon permit policy. Absolute cost of abatement is less for the livestock dominant system but relative cost is greater, because of lower total farm profits. The analysis found that at predicted emissions permit prices, trees, if credited as a carbon sink, would be adopted by both farming systems to offset farm greenhouse gas emissions.
Tipo: Conference Paper or Presentation Palavras-chave: Greenhouse policy; Whole-farm modelling; Carbon sinks; Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/57865
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The dynamics of phase farming in dryland salinity abatement AgEcon
Mueller, Ute; Schilizzi, Steven; Tran, Tuyet.
Tipo: Journal Article Palavras-chave: Farm Management; Land Economics/Use.
Ano: 1999 URL: http://purl.umn.edu/117031
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Quality Signaling through Certification AgEcon
Auriol, Emmanuelle; Schilizzi, Steven.
This paper analyzes the problem raised by quality provision in globalizing economies. When quality is a credence attribute, there is a signaling problem and quality drops to its minimum level. A way out of this under-provision equilibrium consists to rely on certification. However certification of goods involves costs, most of which are fixed, because to credibly signal quality, the certification process has to be carry out by an independent authority above all suspicion. The certification costs, which might justify a centralized intervention, become a major force in deciding market structure. Then in a given population the rate of certification depends on the consumers' wealth and size. If the population is too poor the market for certification collapses...
Tipo: Presentation Palavras-chave: Agricultural and Food Policy; Crop Production/Industries; D11; D21; L11; L15..
Ano: 2000 URL: http://purl.umn.edu/123598
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Measuring food security: Definitional sensitivity and implications AgEcon
Bashir, Muhammad Khalid; Schilizzi, Steven.
Six methods for measuring food security are identified from the literature. The dietary intake method (DIM) and the food insecurity experienced-based measurement scales (FIEMS), the two most commonly used, were empirically tested using 1152 rural households in the Punjab province of Pakistan. Results show significant differences in the measurement of food insecure households: 22.9% with DIM vs. 4.7% with FIEMS. A slight change in the food security definition resulted in significant differences. With slight definitional changes, 6.5% of the sample households appeared food insecure using DIM and only 1.1% using FIEMS. Given its high definitional sensitivity, food security must be carefully defined according to country specific conditions and should reflect...
Tipo: Presentation Palavras-chave: Food security; Hunger; Measurement; Vulnerability analysis; Value at risk; Conditional value at risk; Food Security and Poverty.
Ano: 2012 URL: http://purl.umn.edu/124227
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Dynamic trade-offs in water use between irrigation and reservoir aquaculture in Vietnam AgEcon
Tran, Lap Doc; Schilizzi, Steven; Kingwell, Ross S..
Conflicts of interest between irrigation and aquaculture in water use from reservoirs in Vietnam can be resolved when trade-offs in the economic value of water can be quantified over time. Determining these trade-offs can be used as a benchmark for making decisions about managing reservoirs tending to develop rural areas in Vietnam. To solve this problem, a stochastic dynamic programming model was constructed. This model maximizes the expected net present values generated by both agriculture and aquaculture by finding the optimal release paths throughout a year, under conditions of uncertain rainfall. The model was constructed using two main components. First, a dated water production function is used to evaluate responses of crop yields for different...
Tipo: Conference Paper or Presentation Palavras-chave: Irrigation; Reservoir aquaculture; Stochastic dynamic programming; And dynamic trade-offs; Community/Rural/Urban Development.
Ano: 2010 URL: http://purl.umn.edu/59171
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Evaluating conservation auctions with limited information: the policy maker’s predicament AgEcon
Schilizzi, Steven; Latacz-Lohmann, Uwe.
Buying environmental services from private landholders using tendering mechanisms are usually subject to a budget constraint. Auction theory has mostly focused on target-constrained auctions and is less well developed for this type of auction. This paper examines a theoretical model specifically developed for budget-constrained tenders and assesses its capacity to predict tendering performance under information limitations typical of those found in field applications. But this assessment cannot be done without complementing the model with controlled laboratory experiments. Subject to their external validity, we find that the model is able to make the correct policy recommendation when comparing the tender to an equivalent fixed price scheme, even when the...
Tipo: Working or Discussion Paper Palavras-chave: Auctions; Procurement; Tenders; Conservation; Economic experiments; Model validation; Environmental Economics and Policy; Land Economics/Use; C91; C92; D44; Q24; Q28.
Ano: 2011 URL: http://purl.umn.edu/100884
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Does tendering conservation contracts with performance payments generate additional benefits? AgEcon
Schilizzi, Steven; Breustedt, Gunnar; Latacz-Lohmann, Uwe.
Policy makers aiming to get private landholders to supply non-marketed environmental services may need to provide efficient economic incentives. Two ideas have been explored to achieve this: linking contract payments to environmental outcomes and submitting the contracts to competitive tender. This paper investigates whether there are any gains to be had by combining the potential benefits of both approaches. Landholders’ risk aversion to only partially controlled outcomes may offset incentive effects if the fall in participation outweighs any increases in individual effort. Controlled lab experiments were designed on the basis of a theoretical model and were run in two countries, with varying rates of payments linked to environmental outcomes. Results...
Tipo: Working or Discussion Paper Palavras-chave: Conservation tenders; Auctions; Incentive contracts; Agricultural policy; Environmental policy; Market-based instruments; Experimental economics; Environmental Economics and Policy; Land Economics/Use; C92; D44; D82; D86; H57; Q24; Q28.
Ano: 2011 URL: http://purl.umn.edu/100883
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Investigating the performance of market-based instruments for resource conservation: the contribution of agent-based modelling AgEcon
Hailu, Atakelty; Schilizzi, Steven.
Auctions are increasingly being considered as a mechanism for allocating conservation contracts to private landowners. This interest is based on the widely held belief that competitive bidding helps minimize information rents. This study constructs an agent-based model to evaluate the long term performance of conservation auctions under settings where bidders are allowed to learn from previous outcomes. The results clearly indicate that the efficiency benefits of one-shot auctions are quickly eroded under dynamic settings. Furthermore, the auction mechanism is found to be inferior to fixed payment schemes except when the latter involve the use of high reserve prices.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 2003 URL: http://purl.umn.edu/57883
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Modelling the management of multiple-use reservoirs: Deterministic or stochastic dynamic programming? AgEcon
Tran, Lap Doc; Schilizzi, Steven; Chalak, Morteza; Kingwell, Ross S..
Modelling complex systems such as multiple-use reservoirs can be challenging. A legitimate question for scientists and modellers is how best to model their management under uncertain rainfall. This paper studies whether it is worth using a stochastic model that requires more effort than a much simpler deterministic model. Both models are applied to the management of a multiple-use reservoir in southern Vietnam. Although no single modelling approach is universally superior, this study indicates that the desirable modelling approach is stochastic if reservoir capacity and water use demands have a high enough impact on the optimal timing of reservoir water use.
Tipo: Presentation Palavras-chave: Deterministic dynamic proramming; Stochastic dynamic programming; Water management; Irrigation; Fisheries; Multiple-use reservoir; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2012 URL: http://purl.umn.edu/124463
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History, Statics and Options: Transaction Costs in Institutional Change for Water Resources AgEcon
Challen, Ray; Schilizzi, Steven.
Institutions for use of natural resources, including water resources, typically encompass assignments of property rights to various levels of government, private entities and commonproperty organisations. Institutional reform often involves a change in these property rights, such as devolution of property rights from governments to private resource users. In institutional economics it is generally accepted that institutional change occurs to reduce transaction costs incurred in economic exchanges and regulatory actions. In many situations, including reform of institutions for use of water resources, there are two additional parameters that affect, or should affect, decisions for institutional change: (i) constraints arising from institutional history; and...
Tipo: Presentation Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/123793
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Debugging Mathematical Programming Models: Principles and Practical Strategies AgEcon
Pannell, David J.; Kingwell, Ross S.; Schilizzi, Steven.
Bugs are an unavoidable aspect of mathematical programming (MP) modelling. In this paper we discuss the prevention and diagnosis of bugs in MP models. The topic is rarely addressed in the literature but is crucial to the success of modelling projects, especially for large models. We argue that finding a bug and understanding unexpected results (whether or not due to a bug) are very closely related activities. We identify different types of bugs and suggest practical strategies for dealing with each. Adopting procedures for prevention of bugs is essential, especially for large models. We outline the prevention strategies we have adopted and found successful for the MIDAS and MUDAS models.
Tipo: Journal Article Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996 URL: http://purl.umn.edu/12306
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AUCTIONING OUTCOME-BASED CONSERVATION CONTRACTS AgEcon
Latacz-Lohmann, Uwe; Schilizzi, Steven; Breustedt, Gunnar.
This paper explores two ideas to enhance the performance of agri-environmental contracting schemes: linking contract payments to environmental outcomes and putting the contracts up for tender. This paper investigates whether there are any gains to be had by combining the benefits of both approaches. Controlled lab experiments were run in two countries, systematically varying the rate at which payments are linked to environmental outcomes. This paper clarifies the conditions under which the benefits from combining tenders with incentive payments outweigh the costs.
Tipo: Conference Paper or Presentation Palavras-chave: Conservation tenders; Auctions; Incentive contracts; Agricultural policy; Environmental policy; Market-based instruments; Experimental economics; Auktionen; Ausschreibungsverfahren; Agrar-Umweltverträge; Agrar-Umweltpolitik; Anreizverträge; Experimentelle Ökonomie; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Demand and Price Analysis; Political Economy.
Ano: 2011 URL: http://purl.umn.edu/114523
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Deciding with long-term environmental impacts: what role for discounting? AgEcon
Schilizzi, Steven.
The problem of how to discount values in the far future is reviewed, and shown to lead down a blind alley. An alternative is proposed that allows long term consequences to be addressed by decisions using a relatively short term time horizon. A simple model investigating the optimal containment of radioactive waste in a deterministic world is used to show that current generations can indeed cater for the interests of the far future while optimising over the short term; however, this is not always possible. The proposed method seems to address most of the critiques of long term discounting found in the literature.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2003 URL: http://purl.umn.edu/58206
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Captive insurance companies and the management of non-conventional corporate risks AgEcon
Lesourd, Jean-Baptiste; Schilizzi, Steven.
We examine under what conditions setting up a captive insurance company with reinsurance is an optimal solution for risk-averse firms when the insured firm, the insurer and the reinsurer do not know the probability distribution of some risks, and have conflicting estimates of this distribution.
Tipo: Working or Discussion Paper Palavras-chave: Corporate insurance; Reinsurance; Uncertainty; Ambiguity; Non-conventional risks; Captive insurance companies; Risk and Uncertainty; D81; G22; Q2.
Ano: 2011 URL: http://purl.umn.edu/100886
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A Methodological Approach to the Spatial Aggregation of Values AgEcon
Concu, Giovanni B.; Schilizzi, Steven.
A Choice Modelling (CM) experiment is developed with the purpose of gaining some insight on how to identify the relevant population for the valuation of an environmental asset. The experiment is based on a survey of Perth residents over the values they attach to Kings Park, the largest urban park in Western Australia, 4/5 of which is native bushland. We design the experiment in order to isolate NUVs form UVs so that trade-offs between attributes of the asset imply tradeoffs between Use Values, Non-Use Values and money. One can then estimate the coefficients for each attribute and analyse the effect of distance on patterns of use. Preliminary results are obtained using data from a pre-survey trial of the questionnaire.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/57849
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The Determinants of Rural Household Food Security in the Punjab, Pakistan: An Econometric Analysis AgEcon
Bashir, Muhammad Khalid; Schilizzi, Steven; Pandit, Ram.
Pakistan is one of the leading producers of important agricultural commodities in the world with a relatively high proportion of undernourished population (26 %). This study aims to examine the food security trends in Pakistan in general, and to find out the household level food security and its key determinants in the rural areas of the Punjab Province in particular. Both secondary and primary data were used. Secondary data were obtained from Food and Agriculture Organization (FAO), World Bank and Government of Pakistan’s data sources. Primary data were collected from 1152 households in 12 districts of the Punjab province using questionnaire survey. The analysis was done in two phases i.e. (Phase-A) identification of food security trends, at national...
Tipo: Working Paper Palavras-chave: Food security; Rural households; Logistic regression; Punjab; Pakistan; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; I30; Q18 and R20..
Ano: 2012 URL: http://purl.umn.edu/122526
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The impact of price and yield risk on the bioeconomics of reservoir aquaculture in north Vietnam AgEcon
Petersen, Elizabeth H.; Hertzler, Greg; Schilizzi, Steven.
A bioeconomic model of reservoir aquaculture in northern Vietnam is used to investigate the impacts of price and yield risk on the level, variability and skewness of expected net revenue and utility. Prices and yields are assumed to follow lognormal and beta distributions, respectively. Net revenue follows a generalized gamma distribution and is found to be very risky compared with similar enterprises elsewhere, mainly due to the relatively high yield risk. This represents the nascent nature of the industry in Vietnam and the opportunity for efficiency improvements. Increasing production capacity (through increasing reservoir size, stocking density, production cycle length and harvest rate) are found to increase profits and decrease the variability of...
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic modelling; Price risk; Yield risk; Aquaculture; Vietnam; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/10422
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Managing multiple-use resources: optimizing reservoir water use for irrigation and fisheries AgEcon
Tran, Lap Doc; Schilizzi, Steven; Chalak, Morteza; Kingwell, Ross S..
Policy makers in Vietnam face difficult choices when deciding reservoir water management strategies between irrigation and fisheries. In this paper, an economic optimization model for water management is developed to facilitate policy makers' decision making. The model includes the response of rice and fish yields to key factors including reservoir water levels, the timing and quantity of water release, and climatic conditions. The model accounts for variation in rainfall patterns, irrigation requirements, and the demand for low water levels during the fish harvest season. The model is applied to the Daton reservoir in the south of Vietnam to maximize profits in each of three production scenarios where the reservoir's water is used for: (1) only producing...
Tipo: Conference Paper or Presentation Palavras-chave: Multiple-use resources; Reservoir water management; Optimization; Irrigation; Fisheries; And stochastic; Production Economics.
Ano: 2011 URL: http://purl.umn.edu/100721
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Predicting the performance of conservation tenders when information on bidders's costs is limited AgEcon
Schilizzi, Steven; Latacz-Lohmann, Uwe.
Buying environmental services from private landholders using tendering mechanisms are usually subject to a budget constraint. Auction theory has mostly focused on target-constrained auctions and is not well developed for this type of auction. This paper examines the predictive capacity of a simple model developed for budget-constrained tenders, already used to design new conservation programs, by submitting it to controlled lab experiments. We study the capacity of the model to predict both experimental bids and the performance of the auction institution, based on the kind of limited information typically available to a conservation agency. We conclude there exists an optimal level of information on bidders’ costs, neither too large nor to small, making...
Tipo: Conference Paper or Presentation Palavras-chave: Auctions; Procurement; Tenders; Conservation; Learning; Economic experiments.
Ano: 2009 URL: http://purl.umn.edu/48171
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Valuation of public environmental assets by private companies: optimal dust abatement and air quality AgEcon
Dunn, Peter; Schilizzi, Steven.
This study investigates a new problem in the area of environmental valuation: how much is a public environmental asset worth to a private company? We ask this question in the context of dust abatement, where the asset is air quality. A company wants to know what level of dust abatement is optimal, given the engineering costs of abating and the social costs of not abating. We show that the optimal point for the company lies in between the textbook cases of so-called private optimum and social optimum, which constitute, respectively, a lower and an upper bound for dust abatement. We calculate the upper bound and provide elements for the calculation of the lower bound.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/57863
Registros recuperados: 32
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