Option Based Portfolio Insurance Revisited

2007 ◽  
Vol 2 (2) ◽  
pp. 195-215
Author(s):  
R. Bouchaib

ABSTRACTIn recent years, Constant Proportion Portfolio Insurance (CPPI) has been the most widely recognised form of portfolio insurance among market practitioners, despite a lack of theoretical framework to support it. This paper presents a revised formulation of Option Based Portfolio Insurance (OBPI) and shows, through a case study, how it can be used as a structured product and applied in practice as a dynamic investment strategy for insurance and pensions funds such as with-profits funds. CPPI and the Revised Option Based Portfolio Insurance (ROBPI) technique adopted in this paper are similar in the sense that they rely on dynamic allocation between risky and risk-free assets to provide downside protection. Comparison between the two methods shows that ROPBI is more efficient and forward looking, giving more information about downside risk and producing less volatile asset allocation, which reduces transaction costs and any market impact.

2009 ◽  
Vol 15 (3) ◽  
pp. 573-655 ◽  
Author(s):  
S. Jarvis ◽  
A. Lawrence ◽  
S. Miao

ABSTRACTInvestment strategy is often static, punctuated by infrequent reviews. For most long-term investors, this practice results in large risks being taken that could otherwise be managed with a more dynamic investment policy. The bulk of this paper is aimed at analysing and describing two multi-period investment strategy problems — in order to derive potential dynamic strategies. Along the way, we show how static investment strategies can fail to deliver an investor's long-term objectives and describe the relationship of our work to other areas of the finance literature. This paper does not cover trading strategies such as Tactical Asset Allocation.This paper sets out two main approaches to the multi-period problem. The first approach optimises a utility function. The second approach uses partial differential equation (PDE) technology to optimise a target statistic (in this case, TailVaR) subject to return and long-only constraints.


2020 ◽  
Vol 12 (2) ◽  
pp. 117-124
Author(s):  
Vasilios N. Katsikis ◽  
Spyridon D. Mourtas

The minimization of the costs related to portfolio insurance is a very important investment strategy. In this article, by adding the transaction costs to the classical minimum cost portfolio insurance (MCPI) problem, we define and study the MCPI under transaction costs (MCPITC) problem as a nonlinear programming (NLP) problem. In this way, the MCPI problem becomes more realistic. Since such NLP problems are commonly solved by heuristics, we use the Beetle Antennae Search (BAS) algorithm to provide a solution to the MCPITC problem. Numerical experiments and computer simulations in real-world data sets confirm that our approach is an excellent alternative to other evolutionary computation algorithms.


2020 ◽  
Vol 17 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Antonio Alejo

There is a pressing need to extend our thinking about diplomacy beyond state-centric perspectives, as in the name of sovereignty and national interests, people on move are confronting virtual, symbolic and/or material walls and frames of policies inhibiting their free movement. My point of departure is to explore migrant activism and global politics through the transformation of diplomacy in a globalised world. Developing an interdisciplinary dialogue between new diplomacy and sociology, I evidence the emergence of global sociopolitical formations created through civic bi-nationality organisations. Focusing on the agent in interaction with structures, I present a theoretical framework and strategy for analysing the practices of migrant diplomacies as an expression of contemporary politics. A case study from North America regarding returned families in Mexico City provides evidence of how these alternative diplomacies are operating.


Author(s):  
Martin W. Wallin ◽  
Georg von Krogh ◽  
Jan Henrik Sieg

Crowdsourcing in the form of innovation contests stimulates knowledge creation external to the firm by distributing technical, innovation-related problems to external solvers and by proposing a fixed monetary reward for solutions. While prior work demonstrates that innovation contests can generate solutions of value to the firm, little is known about how problems are formulated for such contests. We investigate problem formulation in a multiple exploratory case study of seven firms and inductively develop a theoretical framework that explains the mechanisms of formulating sharable problems for innovation contests. The chapter contributes to the literatures on crowdsourcing and open innovation by providing a rare account of the intra-organizational implications of engaging in innovation contests and by providing initial clues to problem formulation—a critical antecedent to firms’ ability to leverage external sources of innovation.


Author(s):  
Flavio Angelini ◽  
Katia Colaneri ◽  
Stefano Herzel ◽  
Marco Nicolosi

AbstractWe study the optimal asset allocation problem for a fund manager whose compensation depends on the performance of her portfolio with respect to a benchmark. The objective of the manager is to maximise the expected utility of her final wealth. The manager observes the prices but not the values of the market price of risk that drives the expected returns. Estimates of the market price of risk get more precise as more observations are available. We formulate the problem as an optimization under partial information. The particular structure of the incentives makes the objective function not concave. Therefore, we solve the problem by combining the martingale method and a concavification procedure and we obtain the optimal wealth and the investment strategy. A numerical example shows the effect of learning on the optimal strategy.


2016 ◽  
Vol 25 (4) ◽  
pp. 322-336 ◽  
Author(s):  
Roderick J. Brodie ◽  
Maureen Benson-Rea

Purpose A new conceptualization of the process of country of origin (COO) branding based on fresh theoretical foundations is developed. This paper aims to provide a strategic perspective that integrates extant views of COO branding, based on identity and image, with a relational perspective based on a process approach to developing collective brand meaning. Design/methodology/approach A systematic review of the literature on COO branding and geographical indicators is undertaken, together with a review of contemporary research on branding. Our framework conceptualizes COO branding as an integrating process that aligns a network of relationships to co-create collective meaning for the brand’s value propositions. Findings An illustrative case study provides empirical evidence to support the new theoretical framework. Research limitations/implications Issues for further research include exploring and refining the theoretical framework in other research contexts and investigating broader issues about how COO branding influences self and collective interests in business relationships and industry networks. Practical implications Adopting a broadened perspective of COO branding enables managers to understand how identity and image are integrated with their business relationships in the context of developing collective brand meaning. Providing a sustained strategic advantage for all network actors, an integrated COO branding process extends beyond developing a distinctive identity and image. Originality/value Accepted consumer, product, firm and place level perspectives of COO branding are challenged by developing and verifying a new integrated conceptualization of branding.


2006 ◽  
Vol 25 (2) ◽  
pp. 115-125
Author(s):  
David R. King

Outsourcing inherently considers what activity needs to reside within a given firm. The difficulty of exchanges between firms in the face of uncertainty affects where work on developing and producing new products is performed. Theory is developed and explored using a case study that explains firm sourcing decisions as a response to uncertainty within the context of industry structure and related transaction costs. Viewing outsourcing broadly results in a better delineation of outsourcing options. Implications for management research and practice are identified.


2021 ◽  
pp. 1-13
Author(s):  
Hajar Boutmaghzoute ◽  
Karim Moustaghfir

BACKGROUND: This study builds on the little guidance in the existing literature to analyze the relationship between employee-oriented CSR actions and employee retention in a business context, while using Freeman stakeholders’ model as a theoretical research framework. This research also aims to shed light on significant behavioral factors facilitating the relationship between CSR endeavors and turnover rate. OBJECTIVE: This paper builds on the existing research gap in the literature and suggests that behavioral factors, including job satisfaction, organizational identification, and motivation facilitate the relationship between employee-oriented CSR actions and employee retention, which contributes to laying the foundations of a theoretical framework that has the potential to advance both theoretical and practitioner debates and disentangle the complexity of such a relationship, while offering strategically-focused development venues in CSR and HRM fields. METHODS: This research uses a single case study design to ensure an in-depth and detailed analysis of the phenomenon under scrutiny, while relying on a triangulation methodology for data collection, including a questionnaire used as exploratory approach, interviews to generate explanatory data, and archival data to bring confirmatory insights. Data analysis followed the procedures of a deductive approach. RESULTS: The research results show a positive relationship between employee-oriented CSR actions and employee retention, while demonstrating the facilitating role of job satisfaction, organizational identification, and motivation in moderating such a relationship. The findings also stress the importance of framing CSR interventions within the organization’s strategy and goals, while ensuring employee participation in such decision making processes to maximize the effect of CSR interventions on employee commitment and reduce turnover. CONCLUSIONS: This research has the potential to better clarify the nature of the relationship involving CSR interventions, from an employee perspective, retention, and turnover, while laying the foundations of a theoretical framework linking such constructs and other behavioral factors that underpin and support such a relationship. Building on the study’s findings and assumptions, future research is needed to gain a more comprehensive understanding of how HR-related CSR actions affect behavioral performance dimensions, resulting in employee commitment and retention. Future research should also consider multiple case study, multicultural, and ethnographic approaches for the sake of generalizability and theory building.


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