نتایج جستجو برای: herfindahl hirschman index

تعداد نتایج: 396296  

2017
Svetlana Fanilevna Khasanova

Corresponding Author: Svetlana Fanilevna Khasanova Institute of Economics and Finance, Kazan Federal University, Kazan, Russia Email: [email protected] Abstract: This study presents the results of evaluation of the competitiveness of farmers and the agricultural sector in the region as a whole. Traditional approach of estimating monopolization level uses Herfindahl-Hirshman and Ler...

Journal: :Independent Journal of Management & Production 2021

Retail trade occupies an important place in the economy of Ukraine, ensuring sale manufactured goods to end consumers. For retailers, it is achieve timeliness and reliability services meet customer needs, which can be achieved through formation operational strategy. The purpose article form a methodological approach development strategy retail enterprises, based on requirements corporate strate...

Journal: :Environmental Technology and Innovation 2021

A data-driven model is used to analyse the global effects of biodiesel on energy–water–food (EWF) nexus, and understand complex environmental correlation. Several criteria measure sustainability four main limiting factors for production are discussed in this paper. The includes water stress, food feedstock quantity crude oil price. 155-country covers prices ranging from USD10/bbl USD160/bbl, re...

Journal: : 2023

This study examines the relationship between industry concentration and financial performance among Indian-listed firms across various industries. Using a sample of over 2,078 from 29 distinct sectors, Herfindahl-Hirschman Index for each company was calculated categorized into high, medium low-concentration categories. To ensure representativeness data reliability, 1,583 small companies with HH...

این پژوهش با هدف بررسی تأثیرات رقابت در سطح صنعت و شرکت بر ریسک سقوط قیمت آتی سهام صورت پذیرفته است. بدین منظور دو فرضیه اصلی تدوین و نمونه‌ای متشکل از 67 شرکت به روش حذفی- سیستماتیک از بین شرکت‌های پذیرفته شده در بورس اوراق بهادار تهران انتخاب شد. برای اندازه‌گیری شاخص رقابت در صنعت از شاخص هیرفیندال- هیرشمن و تعداد شرکت‌های فعال در صنعت استفاده شد و برای سنجش رقابت در سطح شرکت از شاخص لرنر تع...

2005
Bronwyn H. Hall

A Herfindahl index of constructed from shares based on count data where the number of counts is small will generally be biased downward because of the statistical properties of count data and Jensen’s inequality. This note suggests a simple correction for the bias and illustrates its applicability when using measures based on patent data and patent citation data.

Journal: :Psychiatric services 2014
Julie Donohue A James O'Malley Marcela Horvitz-Lennon Anna Levine Taub Ernst R Berndt Haiden A Huskamp

OBJECTIVE Physician antipsychotic prescribing behavior may be influenced by comparative effectiveness evidence, regulatory warnings, and formulary and other restrictions on these drugs. This study measured changes in the degree to which physicians are able to customize treatment choices and changes in physician preferences for specific agents after these events. METHODS The study used 2002-20...

Journal: :Critical care explorations 2021

OBJECTIVES: Telemedicine critical care is associated with improved efficiency, quality, and cost-effectiveness. As of 2010, fewer than 5% U.S. hospitals had telemedicine care, 10% ICU beds were covered. We evaluated recent implementation bed coverage rates in the United States compared characteristics without care. DESIGN: Cross-sectional study 2018 American Hospital Association Annual Survey D...

Journal: :International journal of case studies in business, IT, and education 2022

Purpose: The understanding of changing industry dynamics is essential for any business firm that wishes to enter, earn returns and sustain in given industry. study/analysis an various stakeholders. For instance, creditors/investors take decisions concerning investment only after a thorough analysis the current scenario prospects ABCD framework effective tool both positive negative impact indust...

Journal: :Sustainability 2021

In light of the organizational dynamics services economic interest, regulation municipal solid waste management is a critical issue to deal with so as achieve sustainability goals in coming decades. The European circular economy targets limit share landfills maximum 10% by 2035. Consequently, waste-to-energy plants may temporarily become primary option for residual unsorted waste. chain compris...

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