Exploring unheard voices: Best practices in interviewing women prosumers in Indian subsistence contexts

A growing body of literature is focused on subsistence markets and how marketing interventions can increase well-being for those whose daily existence is a struggle to ensure access to necessities of life. To understand the lifeworld of those living at the subsistence level, interviews are favored as a data collection tool. This methodological paper examines interviewing in the subsistence context with a focus on women whose lived experiences are affected by the intersection of gender, power imbalance, and culture. The study context is India. Specifically, we draw upon data from three previous author-conducted academic studies and conduct a reflective analysis that leads to a series of reflections and recommendations for the interview process. This paper calls for more work to be done in the area and raises the need for a new research paradigm rather than reliance on western-oriented approaches that may not fit the context.     

单馈圆极化天线等效电路轴比与反射系数关系研究

基于腔模理论本文提出了理想单馈圆极化天线的等效电路,并且给出了轴比参数和反射系数的计算公式,同时推导得到了单馈圆极化天线等效电路轴比与反射系数关系。从而实现利用电路参数计算得到的反射系数来预估轴比曲线参数的目的。将结果与电路参数计算得到的轴比进行对比,验证了结论的正确性。     

Developing critical reflection: An integrated approach

The increasing impact of globalisation and digitalisation on accounting reinforces the need for accounting education to develop students' core professional skills such as communication, analytical skills and critical thinking, as well as their ability to evaluate the relativity of their knowledge and acknowledge learning needs. This paper reports on a comparative study that explores outcomes from surveys of two separate student groups as they engaged with the elements and components of a task designed to develop their skills and ability to reflect on the currency of knowledge. Findings show merit in the design's integrated and interactive approach, including the transition of students' perspectives, with critical reflection developed through sequencing individual and cooperative learning, oral and written exercises, and formative and summative assessment. Survey responses from students indicate that they responded positively to the challenge of critically reflecting upon research and articulating the relativity of their knowledge.     

Min–max multi-step barrier options and their variants

This paper studies a new type of barrier option, min–max multi-step barrier options with diverse multiple up or down barrier levels placed in the sub-periods of the option’s lifetime. We develop the explicit pricing formula of this type of option under the Black–Scholes model and explore its applications and possible extensions. In particular, the min–max multi-step barrier option pricing formula can be used to approximate double barrier option prices and compute prices of complex barrier options such as discrete geometric Asian barrier options. As a practical example of directly applying the pricing formula, we introduce and evaluate a re-bouncing equity-linked security. The main theorem of this work is capable of handling the general payoff function, from which we obtain the pricing formulas of various min–max multi-step barrier options. The min–max multi-step reflection principle, the boundary-crossing probability of min–max multi-step barriers with icicles, is also derived.     

Multi-step barrier products and static hedging

This paper examines multi-step barrier options with an arbitrary payoff function using extended static hedging methods. Although there have been studies using extended reflection principles to obtain joint distribution functions for barrier options with complex barrier conditions, and static hedging methods to evaluate limited barrier options with well-known payoff functions, we obtain an explicit expression of barrier option price which has a general payoff function under the Black–Scholes framework assumption. The explicit multi-step barrier options prices we discuss in this paper are not only useful in that they can handle different levels and time steps barrier and all types of payoff functions, but can also extend to pricing of barrier options under finite discrete jump–diffusion models with a simple barrier. In the last part, we supplement the theory with numerical examples of various multi-step barrier options under the Black–Scholes or discrete jump–diffusion model for comparison purposes.