This paper investigates how the timing of social support, both emotional and instrumental support, affects entrepreneurial persistence of nascent entrepreneurs. Drawing on social support theory, we hypothesize that the effectiveness of support depends on when, during the venture development process (number of gestation activities completed), it is provided. We also propose that the impact of social support depends on when during the entrepreneur’s life stage (age) that support is made available. Testing our hypotheses using a longitudinal dataset of nascent entrepreneurs, we find that emotional support is most relevant earlier on during venture development, while instrumental support is most relevant for entrepreneurs who begin their businesses in earlier life stages. 相似文献
We challenge the view that PIPEs lead to unfavourable outcomes for issuing firms. We show that structured PIPEs do not have significant negative CARs when a matched firm benchmark is used for computing CARs and when sample selection bias is taken into account. Indeed, structured PIPEs have significantly higher positive skewness, indicating superior optionality, consistent with the real option argument. We also show that the 2002 intervention by the Securities and Exchange Corporation (SEC) has led to unintended consequences, with the substitution of ‘mom and pop’ investors for hedge fund investors in the structured PIPE market. 相似文献
Journal of Business Ethics - Compassion is acknowledged as a key motivational source of prosocial opportunity recognition (OR). This study examines the underlying processes of different types of... 相似文献
This study developed and tested a model of culture’s effect on budgeting systems, and hypothesized that system variables and reactions to them are influenced by culture-specific work-related and ethical values. Most organizational and behavioral views of budgeting fail to acknowledge the ethical components of the problem, and have largely ignored the role of culture in shaping organizational and individual values. Cross-cultural differences in reactions to system design variables, and in the behaviors motivated or mitigated by those variables, has implications for the design and effectiveness of budgeting systems. The data largely support our research model, demonstrating the hypothesized national cultural differences in system design variables (e.g., participation, standards tightness, budget emphasis, etc. which we characterized as the opportunity and incentives to create budgetary slack), and the expected relationship between incentives (but not opportunity) to create slack and slack creation behavior. The data demonstrate hypothesized cultural differences in ethical ideology but show ethical ideology related to slack creation behavior only for U.S. managers. A discussion of the results and their implications is included. 相似文献
Background: QALYs are widely used in health economic evaluation, but remain controversial, largely because they do not reflect how many people behave in practice. This paper presents a new conceptual model (Load Model) and illustrates it in comparison with the QALY model.Methods: Load is the average annual weight attributed to morbidity and mortality over a defined period, using weightings based on preference judgements. Morbidity Load is attributed to states of illness, according to their perceived severity. When people are in full health, Load is zero (no morbidity). Death is treated as an event with negative consequences, incurred in the year following death. Deaths may be weighted equally, with a fixed negative weight such as ?100, or differ according to the context of death. After death, Load is zero. In a worked example, we use the standard gamble method to obtain a weighting for an illness state, for both Load and QALY models. A judge is indifferent between certainty of 1.5 years’ illness followed by death, or a 50/50 chance of 1.5 years’ full health or 1-year illness, each followed by death. The weightings calculated are applied to a hypothetical life, 72 years in full health followed by 3 years with illness then death, using both models. Three other hypothetical outcomes are also compared.Results: For an example life, the relative size of the morbidity component compared with the mortality component is much higher in the Load model than in the QALY model. When comparing alternative outcomes, there are also substantial differences between the two models.Conclusions: In the Load model the weight of morbidity, relative to mortality, is very different from that in the QALY model. Given the role of the QALYs in economic evaluation, the implications of an alternative, which generates very different results, warrant further exploration. 相似文献
Objective: To evaluate cost-effectiveness of brentuximab vedotin in patients with relapsed/refractory Hodgkin lymphoma who have received autologous stem cell transplantation, from a Scottish healthcare payer perspective.
Methods: A Microsoft Excel-based partitioned survival model comprising three health states (progression-free survival [PFS], post-progression survival, and death) was developed. Relevant comparators were chemotherapy with or without radiotherapy (C/R) and C/R with intent to allogeneic hematopoietic stem cell transplantation (alloSCT). Data were obtained from the pivotal phase II single-arm trial in 102 patients (SG035-0003; NCT00848926), a systematic literature review and clinical expert opinions (where empirical evidence was unavailable). PFS and overall survival for brentuximab vedotin were estimated using 5-year follow-up data from SG035-0003, and extrapolated using event rates observed for comparator treatments from published survival data. Resource use included drug acquisition and administration; alloSCT; treatment of adverse events; and long-term follow-up. Deterministic and probabilistic sensitivity analyses were conducted to evaluate the impact of uncertainty.
Results: In the base case, the incremental cost-effectiveness ratio (ICER) for brentuximab vedotin was £38,769 per quality-adjusted life year (QALY) vs C/R, whereas C/R with intent to alloSCT was dominated by brentuximab vedotin. ICERs for brentuximab vedotin generated by the deterministic sensitivity analysis ranged between £32,000–£54,000 per QALY. Including productivity benefits reduced the ICER to £28,881 per QALY.
Limitations: Limitations include lack of comparative data from this single arm study and the heterogeneous population. Inconsistent baseline characteristic reporting across studies prevented complete assessment of heterogeneity and the extent of potential bias in clinical and cost-effectiveness estimates.
Conclusions: Although the base case ICER is above the threshold usually applied in Scotland, it is relatively low compared with other orphan drugs, and lower than the ICER generated using a previous data cut of SG035-0003 that informed a positive recommendation from the Scottish Medicines Consortium, under its decision-making framework for assessment of ultra-orphan medicines. 相似文献
We propose that high‐quality corporate governance may mitigate agency costs related to value‐destroying investments in stakeholder management (SM). Using an unbalanced panel of 9,051 firm‐year observations for 1,631 firms, we find that deviations from expected stakeholder management (ESM) are increasing in chief executive officer (CEO) portfolio delta. We find, however, that deviations from ESM are negatively related to proxies for effective board monitoring. We also document that the effect of governance mechanisms varies by industry (consumer or industrial orientation) and SM dimension. The results indicate that corporations with good governance pursue shareholder value maximization while constraining unnecessary investment in stakeholders.相似文献
Burning bluegrass seed stubble is an important production practice that, among other benefits, increases production and stand life of this perennial crop. Despite economic forecasts that higher production costs from the 1996 state ban on seed stubble burning would reduce Washington production by up to 30%, output in the years 1998–2005 was nearly two-thirds higher than in any previous eight-year period. This study seeks to explain why that paradoxical behavior occurred. This study puts forward and systematically tests several hypotheses. The only hypothesis with any support, innovation offsets, is examined by an assessment of contemporaneous innovations and by corroborative statistical evidence. 相似文献