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...

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-...

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...

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...

El grado de concentración los mercados se ve reflejado en el número organizaciones que participan la producción y comercialización un bien dentro sector industrial ventaja comparativa revelada (VCR) permite conocer especialización exportadora país. La investigación tuvo como objetivo determinar tipo estructura mercado donde desarrolla pesquero su revelada. Los resultados obtenidos para fueron: ...

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...

The article is a continuation of research published by the author elsewhere (Śleszyński, 2020). elaboration presents regularity spatial distribution infections during first six months after detection SARS-CoV-2 coronovirus in Poland under strong lockdown conditions. main aim to try determine basic temporal-spatial patterns and answer questions: what extent phenomenon was ordered it chaotic, whe...

This paper empirically examines the effect of market competition – measured either by the Herfindahl Index or the Lerner Index – on productivity growth and R&D intensity using micro data for Japan’s manufacturing sector. We found evidence of an inverted U-shaped relationship between competition and innovation when we use the Herfindahl Index as a measure of competition in the market. In additio...

The purpose of this study is to investigate the causal relationship between the structure and performance in the banking industry of Iran. In doing so, the data and information of public and private banks from 1996 to 2015 is examined using Toda-Yamamoto causality test (TY) and Autoregressive Distributed Lag (ARDL) approach. Herfindahl-Hirschman index (HHI) (the degree of market concentration) ...