Given advances that streamline breast reconstruction (e.g., prepectoral placement, acellular dermal matrix ADM, oncoplastic surgery), there is concern that nonplastic surgeons are performing a ...growing proportion of breast reconstructive procedures. The purpose of this study was to evaluate US trends in the market share of breast reconstruction performed by plastic compared to general surgeons.
IBM® MarketScan® Commercial Claims 2006-2017 and NSQIP 2005-2020 were queried to identify women who underwent mastectomy with alloplastic (tissue expander or implant-based) or free flap reconstruction, or lumpectomy with oncoplastic reconstruction (breast reduction, mastopexy, or local/regional flap). MarketScan included immediate and delayed reconstructions, while all NSQIP reconstructions were immediate. Poisson regression with incident rate ratios (IRRs) modeled trends in surgeon type over time.
The cohort included 65 168 encounters from MarketScan and 73 351 from NSQIP. Plastic surgeons performed 95.8% of free flap, 93.8% of alloplastic, and 64.9% of oncoplastic reconstructions. Plastic surgeons performed an increasing proportion of immediate oncoplastic reduction and mastopexy (MarketScan IRR: 1.077, 95% confidence interval CI: 1.060-1.094, p < 0.001; NSQIP IRR: 1.041, 95% CI: 1.030-1.052, p < 0.001). There were no clinically significant trends for delayed oncoplastic, alloplastic, or free flap reconstructions. Plastic surgeons were more likely to use ADM compared to general surgeons in NSQIP (p < 0.001).
Plastic surgeons gained market share in immediate oncoplastic breast reduction and mastopexy over the past two decades without any loss in alloplastic or free flap breast reconstruction. Plastic surgeons should continue collaboration with breast surgical oncologists to reinforce the shared surgeon model for management of breast cancer.
► Strategic management of inter-organizational relationships is essential for firms. ► We study the different effects of social capital dimensions on international market share. ► Our study ...specifically tests a three-path mediation model. ► Relational and resource dimensions fully mediate the effect of structural dimension on international social capital. ► The resource dimension represents the best predictor of the international market share.
Our paper contributes to the growing research by examining the interrelations between the dimensions of capital and their effects on the international market share of multinational companies in the global contractors industry. Previous works on social capital have failed to study the interrelationships between its dimensions or have proposed models with direct relationships. The current study proposes a multiple mediating model and tests the mediation. In particular, we posit that the relational and resource dimensions play a mediating role in the structural dimension-international market share relationship. A variance-based structural equation modeling (Partial Least Squares) has been applied to a sample made up of 225 global contractors. Our analysis lends support to the importance of the central positions of a firm and their influence on international market share. Moreover, mediation hypotheses posit how the relational and resource dimensions play a critical mediating role in the structural dimension – international market share relationship. Analysis of the data suggest that the dimensions of social capital are interrelated in such a way that the relational and resource dimensions: (a) fully mediate the effect of centrality (structural dimension) on the international share market and (b) exert significant influence on the international market share of each company.
We study lender behavior in the peer-to-peer (P2P) lending market, where individuals bid on unsecured microloans requested by other individual borrowers. Online P2P exchanges are growing, but lenders ...in this market are not professional investors. In addition, lenders have to take big risks because loans in P2P lending are granted without collateral. While the P2P lending market shares some characteristics of online markets with respect to herding behavior, it also has characteristics that may discourage it. This study empirically investigates herding behavior in the P2P lending market where seemingly conflicting conditions and features of herding are present. Using a large sample of daily data from one of the largest P2P lending platforms in Korea, we find strong evidence of herding and its diminishing marginal effect as bidding advances. We employ a multinomial logit market-share model in which relevant variables from prior studies on P2P lending are assessed.
Brand equity is the differential preference and response to marketing effort that a product obtains because of its brand identification. Brand equity can be measured using either consumer perceptions ...or sales. Consumer-based brand equity (CBBE) measures what consumers think and feel about the brand, whereas sales-based brand equity (SBBE) is the brand intercept in a choice or market share model. This article studies the extent to which CBBE manifests itself in SBBE and marketing-mix response using ten years of IRI scanner and Brand Asset Valuator data for 290 brands spanning 25 packaged good categories. The authors uncover a fairly strong positive association of SBBE with three dimensions of CBBE—relevance, esteem, and knowledge—but a slight negative correspondence with the fourth dimension, energized differentiation. They also reveal new insights on the category characteristics that moderate the CBBE-SBBE relationship and document a more nuanced association of the CBBE dimensions with response to the major marketing-mix variables than heretofore assumed. The authors discuss implications for academic researchers who predict and test the impact of brand equity, for market researchers who measure it, and for marketers who want to translate their brand equity into marketplace success.
The level of diversity within a company’s technology portfolio is one of the most important factors impacting its long-term adaptability and financial performance. In this study, we investigate how ...industry conditions, as well as a firm’s market share within the industry, have systematic influences on the profitability of diverse technological portfolios. Using matched patent and performance data across all US manufacturing industries from 1976 to 2006, we show that greater technological diversity increases the firm’s profitability when (1) it has a high market share, (2) there is a low level of industry concentration, or (3) there is a low level of industry dynamism. In contrast, greater technological focus increases the firm’s profitability when it has a low market share, there is a high level of industry concentration, or there is a high level of industry dynamism.
Objectives of this study were to determine the combined market share of breeding companies in aquaculture production in Europe, to describe the main characteristics of breeding companies and their ...programs, and to provide per species estimates on cumulative genetic gain in growth performance. Surveys were conducted among breeding companies of five major species cultured in Europe: Atlantic salmon, rainbow trout, European seabass, gilthead seabream, and turbot. The market share was estimated as the combined egg or juvenile production of breeding companies relative to the total egg or juvenile production in Europe for each species in 2012. Cumulative genetic gain was estimated from the number of selected generations in current breeding programs, combined with genetic trends, reported selection responses in literature, and phenotypic differences. The combined market share of breeding companies ranged from 43–56% for seabass to 100% for turbot. The total volume of fish production in Europe that originated from selective breeding was 1653–1706 thousand tonnes, corresponding to 80–83% of the total aquaculture production. Over species, there were 37 breeding programs of which the majority performed family selection. Growth performance was universally selected upon.
Cumulative genetic gain in growth performance varied from +65% for turbot to +900% for trout in terms of harvest weight, and from +25% for turbot to +200% for trout in terms of thermal growth coefficient. It is concluded that selective breeding has a major impact on European aquaculture and will contribute to future growth of the sector.
This manuscript helps to understand the impact of selective breeding on European aquaculture. It shows that the adoption of selective breeding is much higher in Europe than globally. It demonstrates that selective breeding has led to major improvements. Forecasts of industry trends are made and the importance of selective breeding to future growth of aquaculture production is illustrated.
•Of the total European aquaculture production, 80-83% originates from selective breeding.•There are 37 breeding programs in Europe of which the majority performs family selection.•Genetic gain varies from +65% for turbot to +900% for trout in harvest weight or +25% for turbot to +200% for trout in TGC.•Selective breeding has a major impact on European aquaculture and will contribute to future growth of the sector.
Over the past decade, global sales of electric vehicles (EVs) have experienced significant growth. However, predictions of future sales developments, which are needed for the planning of EV ...production as well as supporting policies and a sufficient energy supply, are still sparse. In this study, a long-term forecast of the EV inventory in 26 countries across five continents is provided by means of a logistic growth model. Using actual sales data from 2010 to 2018, predictions were made for these countries until 2035. Findings indicate that, overall, 30% of the worldwide passenger vehicle fleet will be EVs in 2032. However, results also display vast differences between countries, which can particularly be attributed to divergences in governmental support. EV growth predictions were additionally analyzed in terms of sustainability impacts. The analysis showed that reductions in CO2 emissions can be achieved with the predicted EV growth, given that countries invest heavily in renewable energy sources. Given the current energy mixes though, worldwide CO2 emissions will continue to rise until 2035 despite a nearly 50% share of EVs. The paper further discusses the amount of energy that will be required to meet the growing demand and highlights that the production of EV batteries will be the key bottleneck in the development of EVs. Finally, important implications for policymakers, marketers and future research are derived.
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•In 2032, 30% of all passenger cars worldwide are predicted to be EVs.•Despite an almost 50% share of EVs in 2035, CO2 emissions will continue to rise.•EV growth reduces CO2 emissions if countries adapt low emission electricity mixes.
The ridesourcing service has taken a large portion of the taxi market in the past few years. Many studies have explored the influencing factors of traditional taxi and ridesourcing demand in ...different areas of the city. Few studies investigated the market share of ridesourcing in different regions of the city. Understanding the spatial distribution of the market share of ridesourcing service and the factors that determine this distribution could help government agencies understand the role that each type of service plays in the transportation system and evaluate the effect of different public policies on the two types of services. This paper studies this topic by constructing a panel fractional regression model based on the taxi trip data of New York City in 2017. Results show that the market share of the traditional taxi is declining while that of ridesourcing service is increasing. The market share of ridesourcing services is higher in remote areas, areas with low population density, low density of transportation facilities, low household income, and high proportion of young residents. It indicates that ridesourcing service could provide more equitable service by better serving the underserved areas while traditional taxi caters more to the high-demand areas.
•We explore built environment factors influencing market share of ridesourcing (RS).•A panel fractional regression model is used to analyze taxi trip data of NYC.•Remote areas, high ratio of low income and young residents are positively related.•Density of population, bus stop, road, and mixed land use are negatively related.•Results could help us understand the interaction of RS and traditional taxi.
Most methodological fields undertake regular critical reflections to ensure rigorous research and publication practices, and, consequently, acceptance in their domain. Interestingly, relatively ...little attention has been paid to assessing the use of partial least squares structural equation modeling (PLS-SEM) in marketing research—despite its increasing popularity in recent years. To fill this gap, we conducted an extensive search in the 30 top ranked marketing journals that allowed us to identify 204 PLS-SEM applications published in a 30-year period (1981 to 2010). A critical analysis of these articles addresses, amongst others, the following key methodological issues: reasons for using PLS-SEM, data and model characteristics, outer and inner model evaluations, and reporting. We also give an overview of the interdependencies between researchers’ choices, identify potential problem areas, and discuss their implications. On the basis of our findings, we provide comprehensive guidelines to aid researchers in avoiding common pitfalls in PLS-SEM use. This study is important for researchers and practitioners, as PLS-SEM requires several critical choices that, if not made correctly, can lead to improper findings, interpretations, and conclusions.
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