Economic impacts often are cited as justification both for and against changes in grazing policy on public lands. A recent study conducted in Owyhee County, Idaho, illustrates a process to gather ranch-level economic information, develop economic models for different ranching systems, and use the models to estimate economic impacts of grazing policy changes. Ranch-level models were developed from producer panels and interviews within the county.

The material contained herein is supplementary to the article named in the title and published in the American Journal of Agricultural Economics, Volume 90, Number 1, February 2008.

Based on a case study of two Moldovan regions, the paper challenges the favourable assessment of recently established peasant farms in a World Bank study by LERMAN et al. (1998).

In this study, main aim is to investigate the sustainable management according to the water and sediment yield of Kucukelmalı pond basin. Potential soil loss was calculated by using the USLE equation for the basin.

Bu çalışmada, Küçükelmalı Gölet Havzasının arazi kullanım planı toprak koruma önlemlerine göre hazırlanmıştır. Havzadaki potansiyel toprak kayıpları USLE eşitliği kullanılarak belirlenmiştir.

This paper examines the impact of having a preservation program on the rate of farmland loss for a 50 year period (1949-1997) in six Mid-Atlantic States: Delaware, Maryland, New York, New Jersey, Pennsylvania, and Virginia. Because farmland loss is affected by changing agricultural profitability, demand for land for non-agricultural purposes, and farmers' alternative employment opportunities, we include variables to control for these factors as well.

This paper analyzes the effects of insecure property rights over land on the functioning of the land rental market in the Dominican Republic. It shows that insecurity of property rights not only reduces the level of activity of the land rental market, but also causes market segmentation. A principal-agent framework is used to model the utility maximization of both the tenant and the landlord, where the landlord accounts for the risk of losing the land when it is not traded within a narrow local circle of confidence.

This research uses field-level data from Burkina Faso to ask what determines farmers' investment in two well-known soil and water conservation techniques: field bunds (barriers to soil and water runoff), and microcatchments (small holes in which seeds and fertilizers are placed). Survey data for 1993 and 1994 are used to estimate Tobit functions, compute elasticities of adoption and intensity of use, perform robustness tests and estimate alternative models.

A theoretical analysis of equilibrium contracts between risk neutral landlords and tenants when tenants' soil exploitation is non-contractible indicates that landlords will overinvest in conservation structures. An empirical model using farm-level data provides evidence that investment in contractible soil conservation measures is greater on rental land.

Farmers' ability to leave agriculture is an important and debated topic in China and other countries. Many scholars believe China's unique land tenure policies prevent farmers from leaving agriculture. This paper examines the hypothesis that China's land tenure system deters exit from agriculture using household level data from Northeast China.

There is widespread concern among environmental and agricultural interest that land use change will affect the future productivity of the agricultural industry by utilizing highly productive land for development. This paper considers the links between land use change and crop choices in order to analyze whether land use change is influencing crop choices. In order to account for potential endogeneity between crop choices and land use choices, we develop a Markov Model that allows us to capture potential endogeneity between these two choices (land use and crop choice).

The condition of the market for of lands of agricultural purpose in modern Russia is analyzed and the complex of actions for economic prerequisites creation for activization of farm land rotation is offered. The state has to undertake urgently measures to increase the control not only over intended use of lands and their involvement in an agricultural rotation, but also over agriculture rationality. The international experience shows the active usage of land resources as pledge. Removal of obstacles of pledge transactions development is also needed in Russia.

Following the example of Tiffen et al. on Machakos, Kenya, new macro-based evidence was collected in Machakos, the neighbouring Kitui district and in Benin, Cameroon and the Philippines, to assess the factors à la Boserup, inducing transitions towards sustainable land management, such as terracing, stone bands etc. We find that relative scarcity of land can be seen to induce technical changes, in the sense of Hayami & Ruttan, that correspond to the new
relative scarcity, making higher man-land ratios the optimal choice.