Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 18 of 18

Full-Text Articles in Life Sciences

A Case Study Of Bioengineering In America: Profits, Risks And Standards Of Value In The Commercialization Of Monsanto Company's Newleaf Potato, Bridget Lyons, Teresa Ralabate, Nadhim Frangul Jan 1999

A Case Study Of Bioengineering In America: Profits, Risks And Standards Of Value In The Commercialization Of Monsanto Company's Newleaf Potato, Bridget Lyons, Teresa Ralabate, Nadhim Frangul

WCBT Faculty Publications

Last year, approximately 45 million acres of American farmland were planted with crops that had been genetically engineered to either produce their own pesticides, or withstand herbicides. The long and short-term effects of this biotechnology on humans and the environment, are being studied, but remain unknown. Leading the way in the field of bioengineered crops is the Missouri-based Monsanto Company. Monsanto believes that current agricultural practices are inconsistent with sustainable development. The NewLeaf potato is one of three products Monsanto has created to feed the growing world population. The genetically engineered crop produces, in every cell of the plant, a ...


Compensation Of Farm Employees, William M. Edwards Jan 1999

Compensation Of Farm Employees, William M. Edwards

Leopold Center Completed Grant Reports

Iowa farm operators were surveyed to learn what type and level of compensation they paid to full-time employees in 1997. The average total compensation paid was $26, 914, of which 79 percent consisted of cash wages.Benefits accounted for 18 percent of the compensation, and bonuses and wages in kind amounted to 3 percent.Housing and insurance plans were the most significant benefits provided


Determining The Benefits Of Environmental Improvements In Pork Production And Their Sustainability: A Community-Based Study Of Iowa's Pork Industry, James B. Kliebenstein, Sean P. Hurley Jan 1999

Determining The Benefits Of Environmental Improvements In Pork Production And Their Sustainability: A Community-Based Study Of Iowa's Pork Industry, James B. Kliebenstein, Sean P. Hurley

Leopold Center Completed Grant Reports

What is a sustainable environment worth to pork producers, neighbors, rural community residents, and pork consumers? Surveys and experimental auctions were used to gauge participants' willingness to pay for pork products produced in systems with differing environmental improvements and/ or impacts


Farmland Ownership And Tenure In Iowa, 1982-1997: A Fifteen Year Perspective, Charles Anthony Pieper Jan 1999

Farmland Ownership And Tenure In Iowa, 1982-1997: A Fifteen Year Perspective, Charles Anthony Pieper

Retrospective Theses and Dissertations

The 1997 Farmland Ownership and Tenure study focuses on aspects of farmland ownership and tenancy in Iowa and compares 1997 data with trends from similar studies conducted in 1982 and 1992. Agricultural landholding types considered in the study include sole ownership, joint tenancy(husband and wife only), co-ownership(other joint ownership and tenants in common), partnership (including general, limited and limited liability partnership), trusts, estates,corporations, and limited liability companies. Demographics of landowners are included in the study and encompass age, gender, education, occupation, marital status, and residency. Acquisition, anticipated transfer, and management of farmland were also analyzed. A major ...


Linking Revealed And Stated Preference Data In Recreation Demand Modeling , Christopher Dean Azevedo Jan 1999

Linking Revealed And Stated Preference Data In Recreation Demand Modeling , Christopher Dean Azevedo

Retrospective Theses and Dissertations

Valuing non-market goods is a unique economic problem. When a market exists for a good, traditional economic techniques may be utilized to determine the value society associates with the good. When that good is not traded in a market, as in the case of wetland recreation, the economist must find some way to compensate for the lack of market signals;In this dissertation, I develop a recreation demand model that is used to link two disparate sources of data. The two types of data are revealed preference data and stated preference data. Revealed preference data is data that is observed ...


Identifying The Effects Of Monetary Policy Shocks On The Farm Sector , Alaa Kamal Alshawa Jan 1999

Identifying The Effects Of Monetary Policy Shocks On The Farm Sector , Alaa Kamal Alshawa

Retrospective Theses and Dissertations

This study concerns two potential channels for the transmission of monetary policy to the farm sector in the United States. The first one is the money channel where I use a relative-price model to explain the effect of monetary policy shocks on relative farm prices. The second one is the credit channel where I use the Flow of Funds Accounts (FOFA) data to assess the effect of monetary policy shocks on net funds raised in the farm sector;The equilibrium relative-price model provides a linkage between monetary policy shocks and relative farm prices. The model shows that monetary policy can ...


Ec99-219 1999 Nebraska Swine Report, Duane Reese Jan 1999

Ec99-219 1999 Nebraska Swine Report, Duane Reese

Historical Materials from University of Nebraska-Lincoln Extension

The 1999 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.


Numerical Optimization Of Recursive Systems Of Equations With An Application To Optimal Swine Genetic Selection , Richard Edmund Hawkins Jan 1999

Numerical Optimization Of Recursive Systems Of Equations With An Application To Optimal Swine Genetic Selection , Richard Edmund Hawkins

Retrospective Theses and Dissertations

A new dynamic programming method is developed for numerical optimization of recursive systems of equations, in which continuous choice variables determine the allowed choices in subsequent stages of the problem. The method works by dynamically creating bubbles, or subspaces, of the total search space, allowing the indexing of states visited for later use, and taking advantage of the fact that states adjacent to a visited state are likely to be visited. The method thereby allows search of spaces far larger than would traditionally be permitted by memory limitations. The search allows an infinite planning horizon, and tests at each stage ...


Three Essays On Productivity In Post-Soviet Primary Agriculture , Lyubov Arnoldovna Kurkalova Jan 1999

Three Essays On Productivity In Post-Soviet Primary Agriculture , Lyubov Arnoldovna Kurkalova

Retrospective Theses and Dissertations

The dissertation consists of three essays that analyze relative growth of subsidiary farming and a decline in the production of collective farms in post-Soviet Ukraine. The first two essays consider the change in the production shares of the collective and subsidiary sectors as two interrelated phenomena. The analysis is built on the observation that all the employees of the collective farms have access to subsidiary plots. We analyze whether a shift of labor from collective farming towards subsidiary farming may be explained by a rational reaction of households to income uncertainty (the first essay) and to a decline in wages ...


Nutrition And The Cognitive Ability Of Children: Evidence From Egypt , Maria Patricia A. Cortez Jan 1999

Nutrition And The Cognitive Ability Of Children: Evidence From Egypt , Maria Patricia A. Cortez

Retrospective Theses and Dissertations

Investing in nutrition is desirable in itself. Adequate nutrition is essential for the proper growth and development of individuals and partly determines the quality of life and well-being of individuals. But there is also an economic rationale for investing in nutrition. Nutrition may have a direct effect on the productivity of labor and an indirect effect through educational achievement. This dissertation focused on the indirect effect of nutrition on labor productivity by examining whether nutritional factors were associated with the cognitive ability of children. The children consisted of toddlers, aged 18--30 months, and schoolers, aged 6--9 years, from a peri-urban ...


Optimal Trade Policy, Time Consistency And Uncertainty In An Oligopsonistic World Market , Jean-Philippe Gervais Jan 1999

Optimal Trade Policy, Time Consistency And Uncertainty In An Oligopsonistic World Market , Jean-Philippe Gervais

Retrospective Theses and Dissertations

This dissertation investigates the strategic behavior between countries that have purchasing power on the world market for a certain good. Tariffs and quotas are not equivalent protection instruments under non-cooperative behavior. Importers would be better off by choosing their policy cooperatively. If production decisions occur before consumption decisions, the ex-ante optimal policy is not time consistent because the ex-post elasticity of the residual foreign export supply is lower than the ex-ante elasticity. However, we show that the importers' inability to commit to their trade instrument may be welfare superior to the precommitment solution;We derive the equilibrium production policies if ...


Examining Agricultural Investment , Chad Edward Hart Jan 1999

Examining Agricultural Investment , Chad Edward Hart

Retrospective Theses and Dissertations

Using two different approaches, the relationship between a firm's investment and its financial variables is examined. Imperfections in the credit market such as asymmetric information have led researchers to explore these relationships. This study incorporates the 5 Cs of lending (character, capacity, collateral, credit rating, and capital) into the farmer's investment decision and explores the impacts of these variables on a basic data set. The data set is composed of 590 Iowa farms that are members of the Iowa Farm Business Association and have reported farm level financial and production data from 1991 to 1995;The first approach ...


Economic Analysis Of Pesticide Regulation In The U.S. Apple Industry , Jutta Roosen Jan 1999

Economic Analysis Of Pesticide Regulation In The U.S. Apple Industry , Jutta Roosen

Retrospective Theses and Dissertations

Several particularities of apple production systems require careful consideration of the methods used to estimate impacts of pesticide regulation. Growing conditions are geographically diverse, quality considerations are of particular importance, and dynamic aspects need to be acknowledged in production systems of perennial crops;A partial-equilibrium model of the apple industry is estimated where orchards are modeled as multiproduct firms producing apples for fresh and processed consumption. Groups of growers are distinguished by region and by pesticide use patterns. The changes of quantities and prices in the markets for fresh and processed apples that follow a technology shift are derived. Economic ...


The Theory And Practice Of Green Insurance: Insurance To Encourage The Adoption Of Corn Rootworm Ipm , Paul David Mitchell Jan 1999

The Theory And Practice Of Green Insurance: Insurance To Encourage The Adoption Of Corn Rootworm Ipm , Paul David Mitchell

Retrospective Theses and Dissertations

Best management practices exist that increase profit and improve the environmental performance of agriculture by increasing input use efficiency. Nevertheless, few producers adopt these best management practices. The risks involved with the adoption and use of these new best management practices are often thought to contribute to this low adoption rate. This dissertation theoretically and empirically analyzes the potential for best management practice insurance---green insurance---to provide insurance coverage against the failure of the practice, thus substantially reducing the risks involved with its adoption and use. Best management practice insurance removes, or at least reduces, a potentially significant factor hindering the ...


Estimating The Value Of "Source Verification" In Iowa Feeder Cattle Markets, Godfred Yeboah Jan 1999

Estimating The Value Of "Source Verification" In Iowa Feeder Cattle Markets, Godfred Yeboah

Retrospective Theses and Dissertations

Source Verification (SV) as defined by the Chariton Valley Beef project is the collection and documentation of background information that should help potential buyers determine the value of the calves. This study used data from two sources; Bloomfield auction market, Bloomfield Iowa and from Rusell, Appanoose, Winterset and Centerville, Iowa auction markets. On average the SV cattle from the Bloomfield auction market yielded higher prices compared to the non-source verified cattle. Regression estimates for the same data set showed price premiums being offered for SV cattle in 1997 for both steers and heifers. However in 1998, only the heifers showed ...


Mp99-40 The Economics And Control Of Insects Affecting Beef Cattle In Nebraska (Northern Great Plains), John B. Campbell, Gustave D. Thomas Jan 1999

Mp99-40 The Economics And Control Of Insects Affecting Beef Cattle In Nebraska (Northern Great Plains), John B. Campbell, Gustave D. Thomas

Historical Materials from University of Nebraska-Lincoln Extension

Livestock insect control should be considered an integral part of an efficient beef herd health program.

This extension circular discusses the behavior and control of these major insect parasites of range and pasture cattle in Nebraska: stable fly, horn fly, face fly, cattle grubs, cattle lice, cattle scabies, horse and deer flies, mosquito, black fly, and biting midges (gnats).


1999 Nebraska Swine Report, Duane E. Reese Jan 1999

1999 Nebraska Swine Report, Duane E. Reese

Historical Materials from University of Nebraska-Lincoln Extension

This publication was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. It deals with the results that were done in reproduction, genetics, breeding, health, nutrition, economics and housing of swine.


Economic Feasibility Of Proposed Expansion Of Eastern Shore Farmers' Market: Seafood Warehouse And Distribution Facility, James Kirkley, William D. Dupaul Jan 1999

Economic Feasibility Of Proposed Expansion Of Eastern Shore Farmers' Market: Seafood Warehouse And Distribution Facility, James Kirkley, William D. Dupaul

Reports

No abstract provided.