بررسی نقش ترازهای واقعی پول در تابع ترجیحات خانوار با چار چوب تعدیل شده مدل قیمت‌گذاری دارایی‌های سرمایه‌ای (M-CCAPM): مطالعه موردی ایران

نویسنده
رضا روشن
دانشگاه خلیج فارس
10.29252/jemr.9.36.163
چکیده
در این مقاله به بررسی نقش ترازهای واقعی پول در تابع ترجیحات خانوار با چار چوب تعدیل شده مدل قیمت‌گذاری دارایی‌های سرمایه‌ای (M-CCAPM) پرداخته شده است. از این رو، متغیر رشد ترازهای واقعی پولی به عنوان یک عامل ریسک در تابع مطلوبیت خانوار وارد گردیده و از دو شکل تابع مطلوبیت با ترجیحات ریسک‌گریزی نسبی ثابت و ترجیحات بازگشتی استفاده شده است به گونه‌ای که، متغیر‌های حجم پول (M1) و حجم نقدینگی (مجموع پول و شبه پول)، (M2) به عنوان ورودی در تابع مطلوبیت در نظر گرفته شده است. پس از تخمین سیستم‌‌های معادلات اولر استخراجی با روش گشتاورهای تعمیم یافته، با استفاده از معیارهای HJ، MAE و MSE به انتخاب مناسب ترین مدل برآورد کننده سهم متغیر تراز واقعی پولی پرداخته شد. معیارهای مذکور نشان می‌دهند که در بین مدل‌های متعدد حاوی متغیر ترازهای واقعی پول، مدل با ورودی حجم نقدینگی (M2) و ترجیحات با ریسک‌گریزی نسبی ثابت، مناسب‌ترین مدل می‌باشد. نتایج پژوهش، بیانگر آن است که سهم تراز واقعی پول در تابع مطلوبیت خانوارهای ایرانی از نظر آماری معنادار بوده و اندازه آن حدوداً 34 درصد می‌باشد. بنابراین با توجه به سهم متغیر پولی در تابع مطلوبیت که نسبتاً قابل ملاحظه است، بر ورود آن به توابع مطلوبیت استفاده شده در مدل‌های قیمت‌گذاری دارایی‌ها در پژوهش‌های مختلف، تاکید می‌گردد.
کلیدواژه‌ها
مدل قیمت‌گذاری دارایی‌ها سرمایه‌ای بر پایه مصرف
تراز واقعی پول
حجم نقدینگی
معادلات اولر
روش گشتاورهای تعمییم‌یافته

عنوان مقاله English

Investigating the Role of real Money Balances in Households' Preferences function in the Framework of the Assets Pricing Models (M-CCAPM): Case study of Iran

نویسنده English

Reza Roshan
Persian Gulf University
چکیده English

In this paper, we try to develop and modify the basic model of the consumption-based capital asset pricing model by adding the growth in real money balances rate as a risk factor in the household's utility function as (M-CCAPM). For this purpose, two forms of utility function with constant relative risk aversion (CRRA) preferences and recursive preferences have been used such that M1 and M2 are considered as inputs in the utility function. After estimating the systems of Euler equations using generalized moments method, MSE, MAE, and HJ criteria were used to select the most suitable model for estimating the share of variable of real money balance. The above criteria show that the model with the input of liquidity (M2) and preferences with constant relative risk aversion is the most appropriate model. The results indicate that the share of real money balance in the utility function of Iranian households is statistically significant and is about 34%. Therefore, considering the contribution of the monetary variable to the utility function which is relatively significant, it is emphasized on its entry into the utility functions used in asset pricing models.

کلیدواژه‌ها English

Consumption-Based Capital Asset Pricing Models
Real Money Balance
Liquidity
Euler Equations
GMM
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