Estimating spatial basis risk in rainfall index insurance PDF Download

Author: Ceballos, Francisco
Publisher: Intl Food Policy Res Inst
ISBN:
Category : Political Science
Languages : en
Pages : 48

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Book Description
This paper develops a novel methodology to estimate the degree of spatial basis risk for an arbitrary rainfall index insurance instrument. It relies on a widelyused stochastic rainfall generator, extendedto accommodate nontraditional dependence patterns—in particular spatial upper-tail dependence in rainfall—through a copula function. The methodology is applied to a recentlylaunched index product insuring against excess rainfall in Uruguay. The model is first calibrated using historical daily rainfall data from the national network of weather stations, complemented with a unique,high-resolution dataset from a dense network of 34 automatic weather stations around the study area. The degree of downside spatial basis risk is then estimated by Monte Carlo simulations and the results are linked to both a theoretical model of the demand for index insurance and to farmers’ perceptions about the product.

Author: Ignacio Rodríguez-Iturbe
Publisher: Cambridge University Press
ISBN: 9780521036740
Category : Science
Languages : en
Pages : 0

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Book Description
Addressing the connections between the hydrologic cycle and plant ecosystems, the authors build suitable mathematical models and apply them to studying the ecosystem structure. Response to rainfall and climate forcing is analyzed from different areas of the world, including savannas, grasslands and forests. The book will appeal to advanced students and researchers in environmental science, hydrology, ecology, earth science, civil and environmental engineering, agriculture, and atmospheric science.

Author: Diane Singerman
Publisher: Oxford University Press
ISBN: 9774162897
Category : Architecture
Languages : en
Pages : 563

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Book Description
"After a failed study mission in France, Abd al-Rahman returns home to Iraq to launch an existentialist movement akin to that of his hero. Convinced that it falls upon him to introduce his country's intellectuals to Sartre's thought, he feels especially qualified by his physical resemblance to the philosopher (except for the crossed eyes) and by his marriage to Germaine, who he claims is the great man's cousin. Meanwhile, his wealth and family prestige guarantee him an idle life spent in drinking, debauchery, and frequenting a well-known nightclub. But is his suicide an act of philosophical despair, or a reaction to his friend's affair with Germaine? A biographer chosen by his presumed friends narrates the story of a somewhat bewildered young man who-like other members of his generation-was searching for a meaning to his life. This parody of the abuses and extravagances of pseudo-philosophers in the Baghdad of the sixties throws into relief the Iraqi intellectual and cultural life of the time and the reversal of fortune of some of Iraq's wealthy and powerful families."--Publisher description.

Author: Stephen Jewson
Publisher: Cambridge University Press
ISBN: 1139444514
Category : Business & Economics
Languages : en
Pages : 393

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Book Description
Originally published in 2005, Weather Derivative Valuation covers all the meteorological, statistical, financial and mathematical issues that arise in the pricing and risk management of weather derivatives. There are chapters on meteorological data and data cleaning, the modelling and pricing of single weather derivatives, the modelling and valuation of portfolios, the use of weather and seasonal forecasts in the pricing of weather derivatives, arbitrage pricing for weather derivatives, risk management, and the modelling of temperature, wind and precipitation. Specific issues covered in detail include the analysis of uncertainty in weather derivative pricing, time-series modelling of daily temperatures, the creation and use of probabilistic meteorological forecasts and the derivation of the weather derivative version of the Black-Scholes equation of mathematical finance. Written by consultants who work within the weather derivative industry, this book is packed with practical information and theoretical insight into the world of weather derivative pricing.

Author: Harold Alderman
Publisher: World Bank Publications
ISBN: 0821370375
Category : Social Science
Languages : en
Pages : 48

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Book Description
Uninsured risk had far-reaching consequences for rural growth as well as poverty reduction. A range of informal mechanisms to insure rural households against the impact of shocks, but they are a modest component of a risk layering strategy for well-off households and even less protective for low-income households. Formal insurance mechanisms have inherent market imperfections. State interventions to address these limitations have proven costly and generally are targeted poorly. Recent developments in microfinance as well as in insurance marketing have opened new possibilities for household risk reduction. Index insurance, such as weather indexing, addresses other inherent problems in insurance by using an indicator that is not affected by individual behaviour and may address monitoring costs and moral hazard. A number of innovations using index insurance are being tried currently in diverse settings ranging from India to Mongolia to Malawi. Marketing costs may limit the provision of such insurance to small farmers, but even in such cases microfinance institutes may serve as market intermediaries. Moreover, state and submational governments can use insurance to achieve countercyclical funding programs. In this vein, municipal governments in Mexico have used insurance to finance disaster contingency while the World Food Program has insured a portion of its emergency assistance to Ethiopia. Humanitarian organizations and NGOs may also seek insurance in this manner.

Author: Barry K. Goodwin
Publisher: World Bank Publications
ISBN:
Category : Agricultural insurance
Languages : en
Pages : 38

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Book Description
"Goodwin and Mahul identify the key issues and concerns that arise in the design and rating of crop yield insurance plans, with a particular emphasis on production risk modeling. The authors show how the availability of data shapes the insurance scheme and the ratemaking procedures. Relying on the U.S. experience and recent developments in statistics and econometrics, they review risk modeling concepts and provide technical guidelines in the development of crop insurance plans. Finally, they show how these risk modeling techniques can be extended to price risk in order to develop crop revenue insurance schemes. This paper-- a product of the Financial Sector Operations and Policy Department-- is part of a larger effort in the department to develop effective risk management and financial products for agriculture"-- World Bank web site.

Author: James Vickery
Publisher: World Bank Publications
ISBN:
Category : Debt Markets
Languages : en
Pages : 20

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Book Description
Abstract: Using 40 years of historical rainfall data, this paper estimates a distribution for payouts on rainfall insurance policies offered to farmers in the State of Andhra Pradesh, India, in 2006. The authors find that the contracts primarily protect households against extreme tail events; half the expected value of indemnities paid by the insurance are generated by only 2 percent of rainfall realizations. Contract payouts are significantly correlated cross-sectionally, and also inversely associated with real GDP growth. The paper discusses the implications of these findings for the potential benefits of insurance to households, the risks facing a financial institution underwriting rainfall insurance contracts, and pricing.

Author: Reinhard Mechler
Publisher: Springer
ISBN: 3319720260
Category : Science
Languages : en
Pages : 557

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Book Description
This book provides an authoritative insight on the Loss and Damage discourse by highlighting state-of-the-art research and policy linked to this discourse and articulating its multiple concepts, principles and methods. Written by leading researchers and practitioners, it identifies practical and evidence-based policy options to inform the discourse and climate negotiations. With climate-related risks on the rise and impacts being felt around the globe has come the recognition that climate mitigation and adaptation may not be enough to manage the effects from anthropogenic climate change. This recognition led to the creation of the Warsaw International Mechanism on Loss and Damage in 2013, a climate policy mechanism dedicated to dealing with climate-related effects in highly vulnerable countries that face severe constraints and limits to adaptation. Endorsed in 2015 by the Paris Agreement and effectively considered a third pillar of international climate policy, debate and research on Loss and Damage continues to gain enormous traction. Yet, concepts, methods and tools as well as directions for policy and implementation have remained contested and vague. Suitable for researchers, policy-advisors, practitioners and the interested public, the book furthermore: • discusses the political, legal, economic and institutional dimensions of the issue• highlights normative questions central to the discourse • provides a focus on climate risks and climate risk management. • presents salient case studies from around the world.

Author: Hong Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 33

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Book Description
Accurate crop yield forecasting is central to effective risk management for many stakeholders, including farmers, insurers, and governments, in various practices, such as crop management, sales and marketing, insurance policy design, premium rate setting, and reserving. This paper rst investigates an innovative approach of yield forecasting using a dynamic factor model. Based on the proposed approach, we then design an enhanced weather index-based insurance (IBI) policy. The dynamic factor approach is motivated by its ability to effectively summarize the information in a large set of explanatory variables with common factors of a much lower dimension. This makes it possible to use an extensive set of variables in crop yield prediction without worrying about identication issues. Using both county-level and state-level crop production data from the state of Illinois, U.S., the empirical results show that the dynamic factor approach produces more accurate in- and out-of-sample forecasting results compared to the classical statistical models. The empirical results also support that the proposed IBI policy based on the dynamic forecasting model has small basis risk. This, in turn, greatly improves the IBI's hedge effectiveness against agricultural production as well as increases its practicality as an insurance policy for agriculture.

Author: Larsen, Anna Folke
Publisher: Intl Food Policy Res Inst
ISBN:
Category : Political Science
Languages : en
Pages : 52

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Book Description
Height-for-age z-scores (HAZs) and stunting status (HAZ<−2) are widely used to measure child nutrition and population health. However, accurate measurement of age is nontrivial in populations with low levels of literacy and numeracy, limited use of formal birth records, and weak cultural norms surrounding birthdays and calendar use. In this paper we use Demographic and Health Surveys data from 62 countries over the period 1990–2014 to describe two statistical artifacts indicative of misreporting of age. The first artifact consists of lower HAZs for children reported to be born earlier in each calendar year (resulting in implausibly large HAZ gaps between January- and December-born children), which is consistent with some degree of randomness in month of birth reporting. The second artifact consists of lower HAZs for children with a reported age just below a round age (and hence implausibly large HAZ gaps between children with reported ages just below and just above round ages), which is consistent with survey respondents rounding ages down more than they round ages up. Using simulations, we show how these forms of misreporting child age can replicate observed patterns in the data, and that they have small impacts on estimated rates of stunting but important implications for research that relies on birth timing to identify exposure to various risks, particularly seasonal shocks. Moreover, the misreporting we identify differs from conventional age-heaping concerns, implying that the metrics described above could constitute useful markers of measurement error in nutrition surveys. Future research should also investigate ways to reduce these errors.