نقش شاخص های اعتماد بازار سهام در فضای نااطمینانی مالی و نااطمینانی سیاست های اقتصادی و شوک آن بر بازده سهام

الموضوعات :

سیده نرجس شیرمردی ¹ , مجید صامتی ² , حسین شریفی رنانی ³

1 - گروه اقتصاد دانشگاه ازاد اسلامی،واحد اصفهان(خوراسگان)،اصفهان،ایران
2 - دانشگاه اصفهان،گروه اقتصاد،اصفهان،ایران
3 - دانشیار گروه اقتصاد، دانشگاه ازاد اسلامی، واحد اصفهان (خوراسگان)، اصفهان، ایران

تاريخ الإرسال : 18 السبت , محرم, 1445 تاريخ التأكيد : 07 الأحد , صفر, 1446 تاريخ الإصدار : 08 الأربعاء , ربيع الأول, 1446

الکلمات المفتاحية: اعتماد بازار سهام, نااطمینانی مالی, نااطمینانی سیاست‌های اقتصادی, بازار سرمایه, بازده سهام,

ملخص المقالة :

هدف از این پژوهش بررسی نقش شاخص‌های اعتماد بازار سهام در فضای نااطمنیانی مالی و نااطمینانی سیاست‌های اقتصادی کشور امریکا و اثرات شوک کوتاه‌مدت و بلندمدت آن بر بازده سهام(شاخص اس اند پی بورس نیویورک) با استفاده از الگوی خودبازگشت برداری ساختاری و داده‌های فصلی در بازه زمانی 2022- 2002 می‌باشد. نتایج حاکی از آن است که در کوتاه‌مدت بیشترین تاثیر شوک‌های منفی به ترتیب ناشی از متغیرهایی همچون بازده سهام، سپس نااطمینانی مالی ، شاخص اعتماد ارزش‌گذاری، نااطمینانی اقتصادی ، شاخص اعتماد یکساله و متغیرهای نااطمینانی سیاست‌های اقتصادی ، شاخص اعتماد سقوط و شاخص اعتماد خرید قیمت پائین نیز تقریبا به یک اندازه بر بازدهی سهام تاثیرگذار بوده‌اند. در بلندمدت نیز بیشترین تاثیر شوک‌های منفی به ترتیب ناشی از متغیرهایی همچون بازده سهام، نااطمینانی سیاست‌های اقتصادی، شاخص اعتماد خرید قیمت پائین، نااطمینانی اقتصادی، شاخص اعتماد یکساله و سپس متغیرهای نااطمینانی مالی، شاخص اعتماد ارزش‌گذاری، شاخص اعتماد سقوط نیز تقریبا به یک اندازه بر بازدهی سهام تاثیرگذار بوده‌اند.

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