rice yield distribution and risk assessment in south asian countries: a statistical investigation

نویسندگان

mahadeb prasad poudel

shwu-en chen

raju ghimire

چکیده

in the last decades, rice yields in south asian countries grew tremendously in one hand and a noticeable yield fluctuation on the other. the objective of this study was to examine the rice yield distributions, estimate yield risks at country level, and compare risks between five countries namely afghanistan, bangladesh, nepal, sri lanka, and pakistan. anderson darling (ad) test was applied to test the goodness-of-fit for four distributions by using country level de-trended rice yields from 1961 to 2010. results showed the normal distribution was fitted well in afghanistan and sri lanka, whereas the wei bull distribution in bangladesh, nepal, and pakistan. the average yield risks at 85% of the expected yield were found 5.29, 4.27, 3.86, 1.55, and.15% in afghanistan, sri lanka, pakistan, nepal, and bangladesh, respectively. wilcoxon signed rank test results of mean absolute percentage differences showed yield risk in bangladesh was significantly lower than the rest four counties and that in afghanistan was significantly higher than nepal and bangladesh at 0.1 level. the outcome of this study could give policy implications for designing and implementing the risk reducing programs in the countries with higher yield risk.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Rice Yield Distribution and Risk Assessment in South Asian Countries: A Statistical Investigation

In the last decades, rice yields in South Asian countries grew tremendously in one hand and a noticeable yield fluctuation on the other. The objective of this study was to examine the rice yield distributions, estimate yield risks at country level, and compare risks between five countries namely Afghanistan, Bangladesh, Nepal, Sri Lanka, and Pakistan. Anderson Darling (AD) test was applied to t...

متن کامل

Health impact assessment needs in south-east Asian countries.

A situation analysis was undertaken to assess impediments to health impact assessment (HIA) in the South-East Asia Region of WHO (SEARO). The countries of the region were assessed on the policy framework and procedures for HIA, existing infrastructure required to support HIA, the capacity for undertaking HIA, and the potential for intersectoral collaboration. The findings show that environmenta...

متن کامل

How Far Behind Are the South Asian Countries in Relation to East Asian

We define as South Asian countries those countries that start with Iran and end with Bangladesh in Asia. Wethen use export statistics in terms of revealed comparative advantage (RCA) for 14 industrial sectors tomeasure distances of export capabilities for these countries in relation to the “Western” developed and EastAsian countries. Statistical methods such as multidimensional scaling and ...

متن کامل

social development in central asian countries: a statistical comparison

fair distribution of resources among various parts of the society and attention to social development in terms of providing primary educational and health facilities will bring about lasting effects on the countries' development. this paper tries to study social structures in five central asian nations. to do this, growth in sectors like health, education and percentage of state expenditur...

متن کامل

Assessment of Cardiovascular Disease Risk in South Asian Populations

Although South Asian populations have high cardiovascular disease (CVD) burden in the world, their patterns of individual CVD risk factors have not been fully studied. None of the available algorithms/scores to assess CVD risk have originated from these populations. To explore the relevance of CVD risk scores for these populations, literature search and qualitative synthesis of available eviden...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
international journal of agricultural management and development

ناشر: islamic azad university

ISSN 2159-5852

دوره 3

شماره 1 2013

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023