Pipelined Hash-Join on Multithreaded Architectures ABSTRACT (2008)
Multi-core and multithreaded processors present both opportunities and challenges in the design of database query processing algorithms. Previous work has shown the potential for performance gains,...
Producers' complex risk management choices (2008)
Pennings, Joost M.E., Isengildina-Massa, Olga, Irwin, Scott H., Garcia, Philip, Good, Darrel L.
An Overview of Reconfigurable Hardware in Embedded Systems (2006)
Philip Garcia, Katherine Compton, Michael Schulte, Emily Blem, Wenyin Fu
Over the past few years, the realm of embedded systems has expanded to include a wide variety of products, ranging from digital cameras, to sensor networks, to medical imaging systems. Consequently,...
An Overview of Reconfigurable Hardware in Embedded Systems (2006)
Philip Garcia, Katherine Compton, Michael Schulte, Emily Blem, Wenyin Fu
Over the past few years, the realm of embedded systems has expanded to include a wide variety of products, ranging from digital cameras, to sensor networks, to medical imaging systems. Consequently,...
Multithreaded architectures and the sort benchmark (2005)
New computer architectures present many challenges to database-system designers. As main memory has increased in size and its latency has increased (in terms of cycles), much research has been...
A selected review of agricultural commodity futures and options markets (2004)
Garcia, Philip, Leuthold, Raymond M.
This paper provides a selected review of the research literature on commodity futures and options markets, focusing primarily on empirical studies. The topics featured include the development of...
This self-proclaimed anthropological and historical study about Midwest wage earners confronts many contemporary issues about the workplace in its 201 pages of text and photographs. Globalization,...
The effects of Spain's entry into the European Community on the Spanish hog market (1992)
This article analyses the welfare effects of accession to the EC on the Spanish hog market. Using a quarterly econometric model, the welfare consequences of accession are derived for the period 1986...
Radial current flow and source density in the basal scala tympani (1987)
Garcia, Philip, Clopton, Ben M.
Ionic movement between the scala media and scala tympani is modulated by acoustic stimulation. It underlies electrical currents in the fluids of these compartments and produces voltage gradients from...
Vita.
Vita.
Thesis--Cornell University.
Market linkages of small farms : a study of the maize market in Northern Vera Cruz, Mexico / (1978)
Proefschrift Ithaca, New York, Cornell University.
A selected review of agricultural commodity futures and options markets
This paper provides a selected review of the research literature on commodity futures and options markets, focusing primarily on empirical studies. The topics featured include the development of...
Sargent, Eric W., Garcia, Philip, Paniello, Randal C., Spector, Gershon J.
Epidermoids are cystic tumors that arise from aberrant epidermal cells. Intradiploic epidermoids are relatively rare tumors that occur in all bones of the calvarium, temporal and sphenoid bones,...
Sargent, Eric W., Garcia, Philip, Paniello, Randal C., Spector, Gershon J.
Epidermoids are cystic tumors that arise from aberrant epidermal cells. Intradiploic epidermoids are relatively rare tumors that occur in all bones of the calvarium, temporal and sphenoid bones,...
Measuring Producers' Risk Preferences: A Global Risk-Attitude Construct.
Pennings, Joost M E, Garcia, Philip
In applied agricultural economic research various risk-attitude elicitation techniques are used. Here, we investigate whether risk-attitude measures rooted in the expected utility framework are...
Usefulness of Pretests for Estimating Underlying Technologies Using Dual Profit Functions.
Dixon, Bruce L, Garcia, Philip, Anderson, Margot
Translog and generalized-linear approximating forms are used to estimate dual profit functions from stochastically simulated data generated from a known, relatively complex technology under...
The value of public information in commodity futures markets
Garcia, Philip, Irwin, Scott H., Leuthold, Raymond M., Yang, Li
Measuring producer welfare under output price uncertainty and risk non-neutrality
David S. Bullock, Philip Garcia, Kie-Yup Shin
Procedures to measure the producer welfare effects of changes in an output price distribution under uncertainty are reviewed. Theory and numerical integration methods are combined to show how for any...
What Killed the Diammonium Phosphate Futures Contract?
Keith Bollman, Philip Garcia, Sarahelen Thompson
Using a survey of industry participants, and an analysis of price relationships, this paper investigates the demise of the diammonium phosphate futures. The results indicate the diammonium phosphate...
Engaging Students in Research: The Use of Professional Dialogue
Graduate students frequently have difficulty defining, developing, and resolving research problems in a manner consistent with the agricultural economics community. We report on a seminar that...
Information, Pricing and Efficiency in Cash and Futures Markets: The Case of Hogs.
Leuthold, Raymond M, Garcia, Philip, Chaherli, Nabil
The price leadership roles among hog cash and futures markets are assessed to locate points of price discovery and to examine flows of information among these markets. Several years of data are...
Thorsten M. Egelkraut, Philip Garcia, Bruce J. Sherrick
Using a flexible method, we develop the term structure of volatility implied by corn futures options with differing maturities, and evaluate its ability to predict subsequent realized price...
Predicting S&P 500 volatility for intermediate time horizons using implied forward volatility
Thorsten Egelkraut, Philip Garcia
This paper finds that the implied forward volatility of S&P 500 futures options contains significant explanatory power regarding sunsequent realized volatility during intermediate future time...
Options-based forecasts of futures prices in the presence of limit moves
Thorsten M. Egelkraut, Philip Garcia, Bruce J. Sherrick
The reported analysis examines a simultaneous estimation option-based approach to forecast futures prices in the presence of daily price limit moves. The procedure explicitly allows for changing...
A statistical method of multi-market welfare analysis applied to Japanese beef policy liberalization
Did Producer Hedging Opportunities in the Live Hog Contract Decline?
Fabio C. Zanini, Philip Garcia
The paper assesses the usefulness of selective hedging strategies when combined with forecast techniques in the live hog contract. The use of routine futures and options hedging is not attractive...
Anil K. Bera, Philip Garcia, Jae-Sun Roh
This paper deals with the estimation of optimal hedge ratios. A number of recent papers have demonstrated that the ordinary least squares (OLS) method which gives constant hedge ratio is...
The Forecasting Value of New Crop Futures: A Decision-Making Framework
Dwight R. Sanders, Philip Garcia, Raymond M. Leuthold
The statistical forecasting efficiency of new crop corn and soybean futures is the topic of frequent academic inquiry. However, few studies address the usefulness of these forecasts to economic...
Towards a Theory of Revealed Economic Behavior: The Economic-Neurosciences Interface
Joost Pennings, Philip Garcia, Eligius Hendrix
Based on recent findings from economics and the neurosciences, we present a conceptual decision-making model that provides insight into human decision-making and illustrates how behavioral outcomes...
The Effects of Spain's Entry into the European Community on the Spanish Hog Market.
This article analyzes the welfare effects of accession to the EC on the Spanish hog market. Using a quarterly econometric model, the welfare consequences of accession are derived for the period 1986...
Is there Evidence of Learning-by-Exporting in Turkish Manufacturing Industries?
Mahmut Yasar, Philip Garcia, Carl Nelson, Roderick Rejesus
Exporting has always been thought of as one tool to improve productivity and, consequently, to spur economic growth in low- to middle-income economies. However, empirical evidence of this so-called...
An Evaluation of Crop Forecast Accuracy for Corn and Soybeans: USDA and Private Information Agencies
Thorsten M. Egelkraut, Philip Garcia, Scott H. Irwin, Darrel L. Good
Using 1971-2000 data, we examine the accuracy of corn and soybean production forecasts provided by the USDA and two private agencies. All agencies improved their forecasts as the harvest progressed,...
The Returns and Forecasting Ability of Large Traders in the Frozen Pork Bellies Futures Market.
Leuthold, Raymond M, Garcia, Philip, Lu, Richard
Using settlement prices and nine years of daily commitments for large reporting traders in the frozen pork bellies futures market, the authors find that these traders generate significant profits and...
Spatial Aggregation and Weather Risk Management
Woodard, Joshua D., Garcia, Philip
Previous studies identify limited potential efficacy of weather derivatives in hedging agricultural exposures. In contrast to earlier studies which investigate the problem at low levels of...
Complex Choices: Producers Risk Management Strategies
Pennings, Joost M.E., Isengildina, Olga, Irwin, Scott H., Good, Darrel L., Garcia, Philip, Frank, Julieta M., ...
Producers have a wide variety of risk management instruments available. How do producers make a choice of risk management instruments? Using the recently developed choice bracketing framework, we...
Producers' Yield and Yield Risk: Perceptions versus Reality and Crop Insurance Use
Egelkraut, Thorsten M., Garcia, Philip, Pennings, Joost M.E., Sherrick, Bruce J.
Using survey data from 258 Illinois corn farmers, we investigate the relationship between subjective and objective yield measures and their effect on the use of crop insurance. Our findings show that...
Kalogeras, Nikos, Pennings, Joost M.E., Garcia, Philip
The strategic choices of Small and Medium Enterprises in the agribusiness sector are fraught with large cost and revenue uncertainties. The transition to a new production system implies that SMEs...
Estimating Liquidity Costs in Agricultural Futures Markets using Bayesian Methods
Frank, Julieta, Garcia, Philip
Estimation of liquidity costs in futures markets is challenging because bid-ask spreads are usually not observed. Several estimators of liquidity costs exist that use transaction data, but there is...
Do Interest Rates Explain Disaggregate Commodity Price Growth?
Franken, Jason R.V., Garcia, Philip, Irwin, Scott H.
The storage at a loss paradox - inventories despite an inadequate spot-futures price spread to cover storage costs— - is an unresolved issue of long-standing interest to economists. Alternative...
HOW TO GROUP MARKET PARTICIPANTS? HETEROGENEITY IN HEDGING BEHAVIOR
Pennings, Joost M.E., Garcia, Philip, Irwin, Scott H., Good, Darrel L.
Using a generalized mixture model, we model individual heterogeneity by identifying groups of participants that respond in a similar manner to the determinants of economic behavior. The procedure...
ENGAGING STUDENTS IN RESEARCH: THE USE OF STRUCTURED PROFESSIONAL DIALOGUE
Garcia, Philip, Nelson, Carl H.
Graduate students frequently have difficulty defining, developing, and resolving research problems in a manner consistent with the agricultural economics community. Here, we report on a seminar...
TOWARDS MEASURING PRODUCER WELFARE UNDER OUTPUT PRICE UNCERTAINTY AND RISK NON-NEUTRALITY
Bullock, David S., Shin, Kie-Yup, Garcia, Philip
We combine theory with numerical integration methods to show that for any form of uncompensated supply, compensating variation of a change in higher moments of an output price distribution can be...
STRATEGIC RISK MANAGEMENT BEHAVIOR: WHAT CAN UTILITY FUNCTIONS TELL US?
Pennings, Joost M.E., Garcia, Philip
The validity of the utility concept, particularly in an expected utility framework, has been questioned because of its inability to predict revealed behavior. In this paper we focus on the global...
Ruth, Matthias, Cloutier, L. Martin, Garcia, Philip
The pig-cycle 'explanation' expunded by Coase and Fowler followed a well-integrated economic logic and provides tremendous insight into our understanding of commodity cycles. The paper presents a...
Basis Risk and Weather Hedging Effectiveness
Woodard, Joshua D., Garcia, Philip
Basis risk has been cited as a primary concern for implementing weather hedges. This study investigates several dimensions of weather basis risk for the U.S. corn market at various levels of...
Frank, Julieta, Garcia, Philip
Recent research has provided mixed results regarding the presence of a time-varying risk premium in agricultural futures markets. In this paper we test for the presence of a time-varying risk premium...
Portfolio Diversification with Commodity Futures: Properties of Levered Futures
Egelkraut, Thorsten M., Woodard, Joshua D., Garcia, Philip, Pennings, Joost M.E.
This study extends previous work on the impact of commodity futures on portfolio performance by explicitly incorporating levered futures into the portfolio optimization problem. Using data on nine...
Relaxing Standard Hedging Assumptions in the Presence of Downside Risk
Mattos, Fabio, Garcia, Philip, Nelson, Carl
The purpose of this study is to analyze how the introduction of a downside risk measure and less restrictive assumptions can change the optimal hedge ratio in the standard hedging problem. Based on a...
Egelkraut, Thorsten M., Garcia, Philip
Options with different maturities can be used to generate an implied forward volatility, a volatility forecast for non-overlapping future time intervals. Using five commodities with varying...
Information Content in Deferred Futures Prices: Live Cattle and Hogs
Sanders, Dwight R., Garcia, Philip, Manfredo, Mark R.
The marginal forecast information contained in deferred futures prices is evaluated using the direct test of Vuchelen and Gutierrez. In particular, the informational role of deferred futures...
Insights into Trader Behavior: Risk Aversion and Probability Weighting
Mattos, Fabio, Garcia, Philip, Pennings, Joost M.E.
The objective of this study is to investigate how professional traders in futures and options markets behave under risk and uncertainty. Our preliminary findings suggest that most traders exhibit...
Measuring Liquidity Costs in Agricultural Futures Markets
Frank, Julieta, Garcia, Philip
Estimation of liquidity costs in agricultural futures markets is challenging because bid-ask spreads are usually not observed. Spread estimators that use transaction data are available, but little...
To What Surprises Do Hog Futures Markets Respond?
Frank, Julieta, Garcia, Philip, Irwin, Scott
We re-assess the effect of new information contained in the Hogs and Pigs Reports (HPR) focusing on the rationality of the announcements. We find that HPR preliminary numbers are irrational estimates...
OPTIONS-BASED FORECASTS OF FUTURES PRICES IN THE PRESENCE OF LIMIT MOVES
Egelkraut, Thorsten M., Garcia, Philip
This analysis examines a simultaneous estimation option-based approach to forecast futures prices in the presence of daily price limit moves. The procedure explicitly allows for changing implied...
This study investigates the relationship between cash and futures prices in the Brazilian agricultural market, focusing on the effects of trading activity on the price discovery mechanism of futures...
PERCEPTIONS OF FUTURES MARKET LIQUIDITY: AN EMPIRICAL STUDY OF CBOT & CME TRADERS
Marsh, Julia W., Pennings, Joost M.E., Garcia, Philip
Traders' perceptions drive their market behavior, and can influence the dynamics of liquidity. This study surveyed 420 traders on their perceptions of the price path during an order imbalance to...
Franken, Jason R.V., Pennings, Joost M.E., Garcia, Philip
Studies of hog industry structure often invoke risk reduction and transaction costs explanations for empirical observations but fail to directly examine the core concepts of risk behavior and...
Dynamic Decision Making in Agricultural Futures and Options Markets
Mattos, Fabio, Garcia, Philip, Pennings, Joost M.E.
This paper investigates the dynamics of sequential decision-making in agricultural futures and options markets. Analysis of trading records of 12 traders identified considerable heterogeneity in...
Cash Settlement of Lean Hog Futures Contracts Reexamined
Frank, Julieta, Gomez, Miguel I., Kunda, Eugene, Garcia, Philip
In 1997 the Chicago Mercantile Exchange replaced its live hog futures contract with a cash settlement mechanism based on a Lean Hog Index. Although cash settlement was expected to increase the use of...
Market Depth in Lean Hog and Live Cattle Futures Markets
Frank, Julieta, Garcia, Philip
Liquidity costs in futures markets are not observed directly because bids and offers occur in an open outcry pit and are not recorded. Traditional estimation of these costs has focused on bidask...
How Much Can Outlook Forecasts be Improved? An Application to the U.S. Hog Market
Colino, Evelyn V., Irwin, Scott H., Garcia, Philip
This study investigates the predictability of outlook hog price forecasts released by Iowa State University relative to alternative market and time-series forecasts. The findings suggest that...
Is Storage at a Loss Merely an Illusion of Aggregation?
Franken, Jason R.V., Garcia, Philip, Irwin, Scott H.
The storage at a loss paradox of positive inventories despite inadequate spot-futures price spread coverage of storage costs is an unresolved issue of long-standing interest to economists....
Probability Distortion and Loss Aversion in Futures Hedging
Mattos, Fabio, Garcia, Philip, Pennings, Joost M.E.
We analyze how the introduction of probability distortion and loss aversion in the standard hedging problem changes the optimal hedge ratio. Based on simulated cash and futures prices for soybeans,...
Farmers’ Subjective Perceptions of Yield and Yield Risk
Egelkraut, Thorsten M., Sherrick, Bruce J., Garcia, Philip, Pennings, Joost M.E.
Using survey responses of Illinois corn farmers to differently framed yield questions, we examine their subjective information by relating stated yields and risk to the corresponding objective county...
Local Polynomial Kernel Forecasts and Management of Price Risks using Futures Markets
Kim, Minkyoung, Leuthold, Raymond M., Garcia, Philip
This study contributes to understanding price risk management through hedging strategies in a forecasting context. A relatively new forecasting method, nonparametric local polynomial kernel (LPK), is...
Unobserved Heterogeneity: Evidence and Implications for SMEs' Hedging Behavior
Pennings, Joost M.E., Garcia, Philip
Financial research indicates that several firm characteristics are related to the use of derivatives. Less attention has been paid to the role of the characteristics of managers, which are...
TIME-VARYING MULTIPRODUCT HEDGE RATIO ESTIMATION IN THE SOYBEAN COMPLEX: A SIMPLIFIED APPROACH
Manfredo, Mark R., Garcia, Philip, Leuthold, Raymond M.
In developing optimal hedge ratios for the soybean processing margin, many authors have illustrated the importance of considering the interactions between the cash and futures prices for soybeans,...
THE EFFECTS OF THE MICRO-MARKET STRUCTURE ON ILLINOIS ELEVATOR SPATIAL CORN PRICE DIFFERENTIALS
Wenzel, Benjamin P., Hill, Lowell, Garcia, Philip
Corn price differentials among Illinois elevators can often exceed transportation costs. Using primary data, we examine the effects of micro-market structure variables on the differentials in bids...
FUTURES MARKET DEPTH: REVEALED VS. PERCEIVED PRICE ORDER IMBALANCES
Pennings, Joost M.E., Garcia, Philip, Marsh, Julia W.
In this paper we study futures market depth by examining the price path due to order imbalances thereby allowing us to directly gain insight in the execution costs due to a lack of market depth We...
THE FEASIBILITY OF A BOXED BEEF FUTURES CONTRACT: HEDGING WHOLESALE BEEF CUTS
Mattos, Fabio, Garcia, Philip, Leuthold, Raymond, Hahn, Tony
The purpose of this paper is to investigate the feasibility of a new futures contract for hedging wholesale transactions in the beef industry based on the USDA boxed beef cutout index (BBCO). The...
Egelkraut, Thorsten M., Garcia, Philip, Sherrick, Bruce J.
Options with different maturities can be used to generate volatility estimates for non-overlapping future time intervals. This paper develops the term structure of volatility implied by corn futures...
Probability weighting and loss aversion in futures hedging
Mattos, Fabio, Garcia, Philip, Pennings, Joost M.E.
We analyze how the introduction of probability weighting and loss aversion in a futures hedging model affects decision making. Analytical findings indicate that probability weighting alone always...
Spatial Aggregation and Weather Risk Management
Woodard, Joshua D., Garcia, Philip
Previous studies identify limited potential efficacy of weather derivatives in hedging agricultural exposures. In contrast to earlier studies which investigate the problem at low levels of...
THE PRICING EFFICIENCY OF AGRICULTURAL FUTURES MARKETS: AN ANALYSIS OF PREVIOUS RESEARCH RESULTS
Garcia, Philip, Hudson, Michael A., Waller, Mark L.
The analysis examines quantitatively the findings of previous studies of the pricing efficiency of various agricultural markets using a logit framework. The findings provide insight into the...
EFFICIENCY MEASURES USING THE RAY-HOMOTHETIC FUNCTION: A MULTIPERIOD ANALYSIS
Neff, David L., Garcia, Philip, Hornbaker, Robert H.
Recent investigations have provided mixed assessments of farm firm efficiency. This analysis examined the efficiency of a homogeneous sample of central Illinois grain farms over a six-year period. A...
An Evaluation of Crop Forecast Accuracy for Corn and Soybeans: USDA and Private Information Agencies
Egelkraut, Thorsten M., Garcia, Philip, Irwin, Scott H., Good, Darrel L.
Using 1971-2000 data, we examine the accuracy of corn and soybean production forecasts provided by the USDA and two private agencies. All agencies improved their forecasts as the harvest progressed,...
To What Surprises Do Hog Futures Markets Respond?
Frank, Julieta, Garcia, Philip, Irwin, Scott H.
We reassess the effect of new information in the Hogs and Pigs Reports (HPR) focusing on announcements’ rationality and alternative surprises. HPR announcements are irrational estimates of...
COMBINING ECONOMIC AND BIOLOGICAL DATA TO ESTIMATE THE IMPACT OF POLLUTION ON CROP PRODUCTION
Dixon, Bruce L., Garcia, Philip, Adams, Richard M., Mjelde, James W.
Duality methods utilizing a profit function framework are employed to estimate the output elasticity of ambient ozone levels on cash grain farms in Illinois. While duality methods have been...
Zapata, Hector O., Hudson, Michael A., Garcia, Philip
A Monte Carlo investigation is used to examine the performance of two commonly used tests for Granger causality for univariate and bivariate nonstationary ARMA (p,q) processes. Tests are applied to...
Zapata, Hector O., Garcia, Philip
The forecasting performance of various multivariate as well as univariate ARIMA models is evaluated in the presence of nonstationarity. The results indicate the importance of identifying the...
THE USE OF MEAN-VARIANCE FOR COMMODITY FUTURES AND OPTIONS HEDGING DECISIONS
Garcia, Philip, Adam, Brian D., Hauser, Robert J.
This study provides additional evidence of the usefulness of mean-variance procedures in the presence of options which can truncate and skew the returns distribution. Using a simulation analysis,...
ESTIMATING CORN YIELD RESPONSE MODELS TO PREDICT IMPACTS OF CLIMATE CHANGE
Dixon, Bruce L., Hollinger, Steven E., Garcia, Philip, Tirupattur, Viswanath
Projections of the impacts of climate change on agriculture require flexible and accurate yield response models. Typically, estimated yield response models have used fixed calendar intervals to...
MEAT-PACKER CONDUCT IN FED CATTLE PRICING: MULTIPLE-MARKET OLIGOPSONY POWER
Koontz, Stephen R., Garcia, Philip
The exercise of market power across multiple geographic fed cattle markets is measured with an econometric model which links behavior of the margin between boxed beef and regional fed cattle prices...
Egelkraut, Thorsten M., Garcia, Philip
Options with different maturities can be used to generate an implied forward volatility, a volatility forecast for non-overlapping future time intervals. Using five commodities with varying...
Weather Derivatives, Spatial Aggregation, and Systemic Risk: Implications for Reinsurance Hedging
Woodard, Joshua D., Garcia, Philip
Previous studies identify limited potential efficacy of weather derivatives in hedging agricultural exposures. In contrast to earlier studies which investigate the problem at low levels of...
Information Content in Deferred Futures Prices: Live Cattle and Hogs
Sanders, Dwight R., Garcia, Philip, Manfredo, Mark R.
The informational content in live cattle and hog deferred futures prices is assessed using a direct test of incremental forecast ability for two- to twelve-month horizons. For 1976-2007, the results...
The informational content of the shape of utility functions: financial strategic behavior
Recently, Pennings and Smidts (2003) showed a relationship between organizational behavior and the global shape of the utility function. Their results suggest that the shape of the utility function...
Bid-Ask Spreads, Volume, and Volatility: Evidence from Livestock Markets
Frank, Julieta, Garcia, Philip
Understanding the determinants of liquidity costs in agricultural futures markets is hampered by a need to use proxies for the bid-ask spread which are often biased, and by a failure to account for a...
Basis risk and weather hedging effectiveness
Jason D. Woodward, Philip Garcia
Basis risk – the risk that payoffs of a hedging instrument do not correspond to the underlying exposures – is cited as a primary concern for implementing weather data, we investigate several...
Managing price risks using and local polynomial kernel forecasts
Minkyoung Kim, Philip Garcia, Raymond Leuthold
This study contributes to understanding price risk management through hedging strategies in a forecasting context. A relatively new forecasting method, nonparametric local polynomial kernel (LPK), is...
Franken, Jason R.V., Pennings, Joost M.E., Garcia, Philip
Risk reduction and transaction costs are often used to explain contracting in the U.S. hog industry with little empirical support. Using a unified conceptual framework that draws from risk behavior...