نتایج جستجو برای: demand of food
تعداد نتایج: 21204614 فیلتر نتایج به سال:
The objective of this study was to investigate the demand of food and nonfood commodities among urban and rural households. To this aim, an appropriate functional form and approximation index were established. Then, Deaton and Mulbaer Iterative (DMI) approach as a linear approximation of Almost Ideal Demand System was used. The study horizon was also 1362-1383(1983-2004). The findings revealed ...
چکیده در این مطالعه، تقاضای گروه های اصلی خوراکی در مناطق شهری ایران برای دوره زمانی1361 تا 1386 بررسی شده است. بدین منظور از سیستم تقاضای تقریباً ایده آل خطی (la/aids)، شاخص تقریب خطی لاسپیرس و روش رگرسیون های به ظاهر نامرتبط (sur) استفاده شد. نتایج به دست آمده نشان داد که متغیر متوسط جمعیت خانوار در بیشتر معادلات تأثیر معناداری بر تقاضای خانوار داشته است. قیود همگنی و تقارن نیز مورد آزمون قرار...
A consumer lifecycle demand system is constructed to investigate the presence of ra tional habits and effects of food safety information on U.S. meat consumption. Based on previous studies, information on meat recalls and media coverage of food safety events is used to measure consumer perception of meat quality. At quarterly frequen cies, U.S. meat demand is found to be intertemporally nons...
taking advantage of the new technology, supply chain has already created a chain of cooperation among its own companies, and, in a larger scale, within a universal environment. superior to these technologies is rfid which is an abbreviation for radio frequency identification. rfid is one of the most advanced technologies in the contemporary world. perishable products and hose with short time ex...
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