Cuma Akbay - Academia.edu (original) (raw)

Papers by Cuma Akbay

Kahramanmaras Sutcu Imam Universitesi Sosyal Bilimler Dergisi, 2012

Kahramanmaras Sutcu Imam University Journal of Natural Sciences, 2013

Quality Quantity International Journal of Methodology, 2010

Http Dx Doi Org 10 1080 00036840600949256, Apr 11, 2011

People in developing countries are increasing their consumption from the very low levels of the p... more People in developing countries are increasing their consumption from the very low levels of the past, and they have a long way to go before coming near developed country averages. In this study, households' animal products consumption patterns are analysed by using ...

Empirical Economics, 2010

... series data. The nature of data available for this study renders the examination of the effec... more ... series data. The nature of data available for this study renders the examination of the effects of various economic and demographic characteristics not available in most aggregate time series (Abdel-Ghany and Silver 1998). The ...

Kahramanmaras Sutcu Imam University Journal of Natural Sciences, 2013

In this paper, the demand elasticities and the size of price cost margin (PCM) ratios were invest... more In this paper, the demand elasticities and the size of price cost margin (PCM) ratios were investigated for private and national branded products using scanner data from a large supermarket chain in Ohio, USA. Demand elasticities and PCM ratios were measured for 32 national branded and 14 private label products for 9 food categories by using Almost Ideal Demand System. According to the results, lower-income shoppers were more prices sensitive than higher-income shoppers and the average price elasticities were ranged between -1.96 (Snacks) and -3.33 (ice-cream). According to the results, non-collusive case gave smaller PCM than the Bertrand case and the average PCM ratios ranged from 27% for ice cream to 54% for chips.

Crop yield is primarily water-limited in the arid and semi-arid agricultural areas of Turkey. Amo... more Crop yield is primarily water-limited in the arid and semi-arid agricultural areas of Turkey. Amount of irrigation water could be as much as water which produces economic crop yield. Objective of this study was to analyze analytically deficit irrigation of sunflower and to determine alternative deficit irrigation water levels using water yield relationship of sunflower, cots and revenue function. Besides,

Fruit and vegetables are important agricultural products of our country. These product industries... more Fruit and vegetables are important agricultural products of our country. These product industries consist of many crops and products, each has very different marketing channels and demand and supply. Although most of these products (more than hundreds) are commercially produced and sold and bought, a few major products dominate in this industry. When we compare with other countries in the

The objectives of this study were to analyse deficit irrigation with the mathematical optimisatio... more The objectives of this study were to analyse deficit irrigation with the mathematical optimisation method using the water- yield relationship and cost functions of red pepper, and to determine alternative deficit irrigation water levels. For this purpose, the effect of 5 different irrigation levels (I1, I2, I3, I4, and I5) on dry yield (DY) was determined using a line source

Gidarnleri talep esnekliklerinin tahmini, gerek tarim ekonomisi ve gerekse uygulamali ekonomik Áa... more Gidarnleri talep esnekliklerinin tahmini, gerek tarim ekonomisi ve gerekse uygulamali ekonomik Áali"malardanemli Áali"ma alanlarindan biridir. Bu Áali"manin amaci Trkiye istatistik Kurumu (T‹#K) tarafindan derlenmi" olan kesit veriler kullanilarak Trkiye'de hanehalklari tarafindan tketilennemli gida ¸rnlerinin talep esnekliklerini tahmin etmektir. ˙ali"mada, 42 gidarnne ait talep modeli, gelir ve fiyat esnekliklerini tahmin etmek amaciyla Heckman iki a"amali tahmin yntemi kullanilmi"tir. Analiz sonuÁlarina gre,

Journal of Policy Modeling, 2013

ABSTRACT A variety of censored dependent variable models are used to identify the impacts of soci... more ABSTRACT A variety of censored dependent variable models are used to identify the impacts of social and economic variables on the decision to consume and the amount of expenditure on tobacco in Turkey. Using data from the Turkish Household Expenditure Survey, the odds of smoking and spending level on tobacco products are investigated jointly. Statistical tests identify the inverse hyperbolic sine double-hurdle model as the preferred model. Socio-demographic factors are found to have differentiated effects on participation and level decisions. Findings can inform deliberations of policy measures to curtail tobacco consumption and reduce the costs of the public healthcare system.

Journal of International Food & Agribusiness Marketing, 2007

Journal of Animal and Veterinary Advances, 2012

Food Quality and Preference, 2005

Kahramanmaras Sutcu Imam Universitesi Sosyal Bilimler Dergisi, 2012

Kahramanmaras Sutcu Imam University Journal of Natural Sciences, 2013

Quality Quantity International Journal of Methodology, 2010

Http Dx Doi Org 10 1080 00036840600949256, Apr 11, 2011

People in developing countries are increasing their consumption from the very low levels of the p... more People in developing countries are increasing their consumption from the very low levels of the past, and they have a long way to go before coming near developed country averages. In this study, households' animal products consumption patterns are analysed by using ...

Empirical Economics, 2010

... series data. The nature of data available for this study renders the examination of the effec... more ... series data. The nature of data available for this study renders the examination of the effects of various economic and demographic characteristics not available in most aggregate time series (Abdel-Ghany and Silver 1998). The ...

Kahramanmaras Sutcu Imam University Journal of Natural Sciences, 2013

In this paper, the demand elasticities and the size of price cost margin (PCM) ratios were invest... more In this paper, the demand elasticities and the size of price cost margin (PCM) ratios were investigated for private and national branded products using scanner data from a large supermarket chain in Ohio, USA. Demand elasticities and PCM ratios were measured for 32 national branded and 14 private label products for 9 food categories by using Almost Ideal Demand System. According to the results, lower-income shoppers were more prices sensitive than higher-income shoppers and the average price elasticities were ranged between -1.96 (Snacks) and -3.33 (ice-cream). According to the results, non-collusive case gave smaller PCM than the Bertrand case and the average PCM ratios ranged from 27% for ice cream to 54% for chips.

Crop yield is primarily water-limited in the arid and semi-arid agricultural areas of Turkey. Amo... more Crop yield is primarily water-limited in the arid and semi-arid agricultural areas of Turkey. Amount of irrigation water could be as much as water which produces economic crop yield. Objective of this study was to analyze analytically deficit irrigation of sunflower and to determine alternative deficit irrigation water levels using water yield relationship of sunflower, cots and revenue function. Besides,

Fruit and vegetables are important agricultural products of our country. These product industries... more Fruit and vegetables are important agricultural products of our country. These product industries consist of many crops and products, each has very different marketing channels and demand and supply. Although most of these products (more than hundreds) are commercially produced and sold and bought, a few major products dominate in this industry. When we compare with other countries in the

The objectives of this study were to analyse deficit irrigation with the mathematical optimisatio... more The objectives of this study were to analyse deficit irrigation with the mathematical optimisation method using the water- yield relationship and cost functions of red pepper, and to determine alternative deficit irrigation water levels. For this purpose, the effect of 5 different irrigation levels (I1, I2, I3, I4, and I5) on dry yield (DY) was determined using a line source

Gidarnleri talep esnekliklerinin tahmini, gerek tarim ekonomisi ve gerekse uygulamali ekonomik Áa... more Gidarnleri talep esnekliklerinin tahmini, gerek tarim ekonomisi ve gerekse uygulamali ekonomik Áali"malardanemli Áali"ma alanlarindan biridir. Bu Áali"manin amaci Trkiye istatistik Kurumu (T‹#K) tarafindan derlenmi" olan kesit veriler kullanilarak Trkiye'de hanehalklari tarafindan tketilennemli gida ¸rnlerinin talep esnekliklerini tahmin etmektir. ˙ali"mada, 42 gidarnne ait talep modeli, gelir ve fiyat esnekliklerini tahmin etmek amaciyla Heckman iki a"amali tahmin yntemi kullanilmi"tir. Analiz sonuÁlarina gre,

Journal of Policy Modeling, 2013

ABSTRACT A variety of censored dependent variable models are used to identify the impacts of soci... more ABSTRACT A variety of censored dependent variable models are used to identify the impacts of social and economic variables on the decision to consume and the amount of expenditure on tobacco in Turkey. Using data from the Turkish Household Expenditure Survey, the odds of smoking and spending level on tobacco products are investigated jointly. Statistical tests identify the inverse hyperbolic sine double-hurdle model as the preferred model. Socio-demographic factors are found to have differentiated effects on participation and level decisions. Findings can inform deliberations of policy measures to curtail tobacco consumption and reduce the costs of the public healthcare system.

Journal of International Food & Agribusiness Marketing, 2007

Journal of Animal and Veterinary Advances, 2012

Food Quality and Preference, 2005