نتایج جستجو برای: laspyres linear approximation price index

تعداد نتایج: 1087918  

ژورنال: اقتصاد مالی 2018
الهام شیوایی, سیدعبدالمجید جلایی اسفندآبادی نوراله صالحی آسفیجی

هدف محوری این مقاله بررسی ارتباط ساختاری میان بازارهای مالی( بازار سرمایه، بازار ارز، بازار نفت) و بازار تجاری در اقتصاد ایران می باشد. به عبارت دیگر مدل سازی ماتریس ساختاری میان قیمت سهام، نرخ ارز ، قیمت نفت و رابطه مبادله(TOT) و ارتباط سیستماتیک این متغیرها براساس توابع کاپیولای شرطی بررسی خواهد شد. نتایج برآورد اندازه وابستگی بین شاخص‌های بازاری که با تاو کندل (τ) سنجیده شده، نشان می دهد که ...

Mohsen Dastgir

The main objective of this study is to find out whether an Artificial Neural Network (ANN) will be useful to predict stock market price, which is highly non-linear and uncertain. Specifically, this study will focus on forecasting TSE Price Index (TEPIX) as the most significant index of Iran Stock Market. Many data have been used as inputs to the network. These data are observations of 2000 day...

ژورنال: علوم آب و خاک 2009
رحمانی, رهام, زیبایی, منصور,

In this study the causality relationship among variables in chicken and beef markets were investigated based on annual data from 1974 to 2004 in the I.S. of Iran. For this purpose, causality algorithms emerging from directed acyclic graphs were used in two cases, one based on co- integration analysis and innovation correlation matrix of Vector Error Correction Model (VECM) and the other using d...

رحمانی, رهام, زیبایی, منصور,

In this study the causality relationship among variables in chicken and beef markets were investigated based on annual data from 1974 to 2004 in the I.S. of Iran. For this purpose, causality algorithms emerging from directed acyclic graphs were used in two cases, one based on co- integration analysis and innovation correlation matrix of Vector Error Correction Model (VECM) and the other using d...

2006
Hsiao-Tien Pao

This paper uses linear and nonlinear statistical models, including artificial neural network (ANN) methods, to investigate the influence of the four economic factors, which are the national income (NI), population (POP), gross of domestic production (GDP), and consumer price index (CPI) on the electricity consumption in Taiwan and then to develop an economic forecasting model. Both methods agre...

Journal: :Operations Research 2007
Daniel Adelman

We formally derive the standard deterministic linear program (LP) for bid-price control by making an affine functional approximation to the optimal dynamic programming value function. This affine functional approximation gives rise to a new LP that yields tighter bounds than the standard LP. Whereas the standard LP computes static bid prices, our LP computes a time trajectory of bid prices. We ...

2005
I. C. Demetriou

Let there be given error-contaminated measurements of function values at strictly ascending abscissae. We address the problem of calculating a best linear spline approximation to these data, whose knots are predefined on the abscissae. We establish conditions that allow the development of a special descent algorithm that takes into account the structure of the problem. 1 Index Terms data fittin...

بابایی, احمد, یحیی‌زاده‌فر, محمود,

The purpose of this research is to determine the relationship between stock prices index of Tehran Stock Exchange and a set of macroeco-nomic variables including exchange rate, money supply (M2), con-sumer price index (CPI), oil price and nominal interest rate. The data used in this research are monthly time series of year 1375 to 1384. Analysis of the data was done using Vector Autoregressive ...

ژورنال: اقتصاد مالی 2017
اسماعیل فدایی نژاد رضا فراهانی,

هدف این مقاله تجزیه و تحلیل اثرات متغیرهای کلان اقتصادی بر شاخص کل بورس اوراق بهادار در چارچوب تئوری قیمت‌گذاری آربیتراژ است. این مطالعه، هشت متغیر کلان اقتصادی شامل شاخص قیمت مصرف‌کننده، نرخ بهره بانکی، قیمت طلا، شاخص‌ تولیدات صنعتی، قیمت نفت، تلاطم قیمت سهام، نرخ ارز و عرضه پول را به عنوان متغیرهای اثرگذار بر شاخص کل قیمت بورس اوراق بهادار تهران، به عنوان شاخص اصلی بازار سهام ایران را بر اساس...

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