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Essays On Socioeconomic Shocks And Policies In Agriculture, Wilman Iglesias

Department of Agricultural Economics: Dissertations, Theses, and Student Research

The three chapters of this doctoral dissertation estimate the responses of agricultural productivity, production value of agriculture, and crop supply to some external shocks and policies. Using unique panel datasets for Colombia and the United States, this research provides new insights regarding the responsiveness of agriculture to some socioeconomic effects and related market policies. Chapter 1 studies the impact of armed conflicts in rural areas on legal agricultural productivity in Colombia by using a production function that includes violence shocks such as the forced intra-national displacement of the rural population from 1995 to 2017. Chapter 2 investigates the effect of …

The Response Of Onion Plants Allium Cepa L. To Foliar Spray With Different Concentrations Of Seaweed Extract (Algaren), Rawaa Babilie, Ossamh Al-Abdallah, Bassima Kassawat

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The experiment was carried out in the General Commission for Scientific Agricultural Research in the nursery of Al-Adaway in 2014 and 2015 seasons to study the effect of foliar spraying with seaweed extract (Algaren, Seaweeds and Seaweed Products) on local red onion growth and the yield of dry bulbs and produce of seeds. Spray treatments: (control/distilled water, 5, 10, and 15 ml/l Algaren) were applied four times during the season. The complete randomized block design was used with four replicates per treatment.

The results showed that spraying the onion plants emerged from bulblets (Resulting from seed cultivation( with Algaren extract …

The Association Of Southeast Asian Nations Agricultural Total Factor Productivity, 1961-2011, Lee Kottmeyer

Department of Agricultural Economics: Dissertations, Theses, and Student Research

This article estimates agricultural total factor productivity (TFP) growth in eight Southeast Asian nations over the time period of 1961-2011, using panel data. This study is concerned with investigating whether the recent slowdown in agricultural productivity growth exhibited by affluent societies extends to this region. Three approaches for measuring agricultural total factor productivity growth are used. First, a non-parametric Simple TFP, output, and input index is calculated. Second, a non-parametric nonstochastic Malmquist index is calculated using data envelopment analysis techniques. Finally, an econometric true fixed effects stochastic frontier model is estimated using a maximum likelihood procedure. Aggregate measures of TFP …

Management Regimes And Its Impact On The Wetland Fisheries Management In Assam, Ganesh Chandra

Ganesh Chandra

Assam is endowed with copious aquatic wealth in the form of beels, swamps, ponds and rivers. The floodplain wetlands (beels) extending over one lakh hectare, constitute the most important fishery resource of the state. The beels are considered as one of the most productive ecosystems owing to their characteristic interactions between land and water system. These wetlands are the common property resource and under different management regimes. These wetlands are under various management regimes, i.e., private management (individuals and groups), fishermen cooperative management, Community-based fisheries management (decentralized management, Government works as facilitator) and open access. Most of the unregistered beels …

How Population Density Influences Agricultural Intensification And Productivity: Evidence From Ethiopia, Anna Leigh Josephson

Open Access Theses

We use household-level panel data to estimate how population density impacts agricultural intensification and farm income in Ethiopia. We hypothesize that increases in population density affect agricultural intensification and farm income directly through information flows, institutional development, and reduction in transactions costs. Increases in population density also affect agricultural intensification and farm income indirectly through farm size, agricultural wage rates, and staple crop prices. We find that increases in population density lead to lower farm sizes, which has major implications for agricultural intensification and household well-being. Our analysis indicates that increases in population density cause farmers to purchase more inorganic …

Productivity And Welfare, Lilyan E. Fulginiti, Richard K. Perrin

Richard K Perrin

Technical change is generally characterized by a rate and biases, both evaluated for given producer prices. This paper examines the potential discrepancy between this rate and the corresponding rate of consumer welfare change as measured by Allais distributable surplus. We postulate a general equilibrium context with various market failures (taxes, quotas, imperfect competition, and “poorly priced” commodities), and use comparative statics to express the rate of welfare change in terms of the rate and biases of the technical change. An elementary simulation model of a taxed economy suggests that the rate of welfare change may differ from the rate of …

Impacts Of Formal Financing On The Development Of The Sudanese Agricultural Sector, Issam A.W. Mohamed Professor

Professor Issam A.W. Mohamed

The agricultural sector of Sudan is faced by many problems. In the irrigated schemes, the government who officially owns most of them there are entrenched managerial problems that brewed for more than six decades. Moreover, the privatization policies of those schemes provoked many outcries and protests. Large schemes like Gezira have collapsed, this year 2011, only 10% of its over one million hectares were cultivated. The rainfed farming is not different with lack of machineries, shortages of available labor and high priced agricultural inputs, it is not expected to fare better than the irrigated schemes. However, even if those problems …

Taiwanese Industry Competitiveness When Outward Fdi Is Defensive, Ling Sun, Lilyan E. Fulginiti, Yo-Chan Chen

Department of Agricultural Economics: Faculty Publications

The main purpose of this study is to examine the links between outward FDI and the competitiveness of Taiwanese industries. This is done by emphasizing the difference between ‘defensive’ versus ‘expansionary’ outward FDI. The empirical study is based on a panel data of 15 industries over the period 1991–2001. The results indicate that outward FDI of the defensive type, in particular that destined to China, while increasing industry efficiency has had a significant negative influence on competitiveness of the Taiwanese industry through its effects on innovative activity. While outward FDI has impacted the industry’s productivity growth it has not decreased …

Effects Of Investment On Macroeconomic Variables In The Sudanese Economy, Professor Issam A.W. Mohamed

Professor Issam A.W. Mohamed

Most developing and underdeveloped countries beside Sudan suffer from the low levels of income in addition to the low savings that are result from the lack of sophisticated savings channels. Hence, the investment depends on the individual's abilities on self savings, where the investment is considered as major motivating vehicle for economic activity due to its direct correlation with the capital accumulation process that increases the productivity capacity for the national economy and creating job opportunities and achieving economic development. Subsequently, the importance of the investment comes from effective role that can be practiced on the national product. The present …

Productivity And Welfare, Lilyan E. Fulginiti, Richard K. Perrin

Department of Agricultural Economics: Faculty Publications

Technical change is generally characterized by a rate and biases, both evaluated for given producer prices. This paper examines the potential discrepancy between this rate and the corresponding rate of consumer welfare change as measured by Allais distributable surplus. We postulate a general equilibrium context with various market failures (taxes, quotas, imperfect competition, and “poorly priced” commodities), and use comparative statics to express the rate of welfare change in terms of the rate and biases of the technical change. An elementary simulation model of a taxed economy suggests that the rate of welfare change may differ from the rate of …

Is Native Range The Best? Some Pasture Mangement Alternatives, Richard Shane

Economics Commentator

No abstract provided.