نتایج جستجو برای: herfindahl and hirschman index

تعداد نتایج: 16866031  

Journal: Iranian Economic Review 2020

A long with the development of electronic banking as a result of rapid growth of information technology, many banking indices including concentration are affected. This influence is made among different variables of which the amount of banks’ deposits and the level of deposit attraction are the most important. This study the influence of electronic banki...

Journal: :Abant sosyal bilimler dergisi 2023

Bu çalışmanın amacı havayolu pazarlarında piyasa yapısının analiz edilmesidir. Çalışmada gelişmekte olan ve gelişmiş ekonomilerde 2011-2020 dönemi için endüstrisinde pazar yapıları incelenmiştir. Ek olarak, Covid-19 salgınının yapısında meydana getirdiği bozulma da çalışmada incelenen unsurlar arasındadır. CR4, CR8 Herfindahl-Hirschman endeksi olmak üzere farklı teknikleri kullanılmıştır. Çalış...

ژورنال: :پژوهشهای اقتصادی ایران 2015
محمدنبی شهیکی تاش فرهاد خداداد کاشی علی نوروزی

در این پژوهش براساس شاخص صرفه های مقیاس، شاخص تمرکز هرفیندال- هیرشمن[1] و شاخص لرنر[2] ساختار بازار بخش صنعت، مورد ارزیابی قرار گرفته است. همچنین در این مقاله به بررسی ارتباط میان درجه سودآوری با شاخص های درجه تمرکز و صرفه های مقیاس پرداخته شده است. داده­های به کار رفته شامل اطلاعات نهاده و ستاده اجزای تابع هزینه، سهم بازاری صنایع، تعداد بنگاه­ها و قیمت محصولات مرتبط با 23 صنعت کد دو رقمی طبقه­...

Journal: :Journal of risk and financial management 2021

The available research literature on stock performance has primarily stressed the importance of asset price theories, macroeconomic and microeconomic, institutional differences. However, there is still an open question: Are any other factors those influence performance? This aims to answer this question by providing new insights into industry along with country-level firm-specific in conjunctio...

Journal: :Paradigma económico 2022

En este trabajo se aplican tres indicadores de concentración económica para evaluar la producción del espárrago en Michoacán, México: i) Tasa Concentración (TCk); ii) índice Herfindahl Hirschman (IHH); y, iii) Linda (IL), así como cinco índices más medir especialización productiva: Dominancia (ID); Kwoka (IK); Horvath (IH); iv) Rosenbluth (IR); v) Gini (IG). El análisis considera los datos disp...

Journal: :Health affairs 2017
Richard M Scheffler Daniel R Arnold

Using prices of hospital admissions and visits to five types of physicians, we analyzed how provider and insurer market concentration-as measured by the Herfindahl-Hirschman Index (HHI)-interact and are correlated with prices. We found evidence that in the range of the Department of Justice's and Federal Trade Commission's definition of a moderately concentrated market (HHI of 1,500-2,500), ins...

Journal: :Health affairs 2016
Richard M Scheffler Daniel R Arnold Brent D Fulton Sherry A Glied

Recent increases in market concentration among health plans, hospitals, and medical groups raise questions about what impact such mergers are having on costs to consumers. We examined the impact of market concentration on the growth of health insurance premiums between 2014 and 2015 in two Affordable Care Act state-based Marketplaces: Covered California and NY State of Health. We measured healt...

Journal: :Health policy 2010
Chi-Chen Chen Shou-Hsia Cheng

OBJECTIVES To examine the effects of market competition on patient-perceived quality of care under a single-payer system in Taiwan. METHODS Data came from two nationwide surveys conducted on discharged patients and National Health Insurance (NHI) hospital claim datasets in 2002 and 2004. Competition was measured by the Herfindahl-Hirschman Index (HHI). Quality of care was measured by patient-...

Journal: :Anesthesiology 2015
Eric C Sun Franklin Dexter Alex Macario Thomas R Miller Laurence C Baker

BACKGROUND Markets for physician services are becoming increasingly concentrated, with many areas being dominated by a few groups. Antitrust authorities are concerned that increasing concentration will lead to inappropriately high payments for physician services from private insurers. The authors examined the association between market concentration and private insurer payments for anesthesia s...

Journal: :Geneva Papers on Risk and Insurance-issues and Practice 2021

Abstract We aim to understand the effect of market and firm-level concentration on return equity in Indian life microinsurance industry (LMI). This research is one first attempts empirically test structure–performance issues India. Using data 14 companies that remained active LMI during 2009–2019, we demonstrate firms scored better profitability measures whenever competitive pressures were lowe...

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