Incentives, redistribution and social insurance

We extend the familiar income taxation model à la Mirrlees, so as to include income uncertainty, due for instance to a risk of illness. Following a line of research initiated by Blomqvist and Horn [1984] we prove that the existence of a Social Health Insurance system may be justified even when the insurance market is efficient. Moreover, if there is a negative statistical dependence between probability of illness and labor productivity, then the optimum of a Utilitarianist Social Welfare function implies that Social Insurance provides a complete coverage for every household.     

Characterizations of optimal reinsurance treaties: a cost-benefit approach

This article investigates optimal reinsurance treaties minimizing an insurer’s risk-adjusted liability, which encompasses a risk margin quantified by distortion risk measures. Via the introduction of a transparent cost-benefit argument, we extend the results in Cui et al. [Cui, W., Yang, J. & Wu, L. (2013). Optimal reinsurance minimizing the distortion risk measure under general reinsurance premium principles. Insurance: Mathematics and Economics 53, 74–85] and provide full characterizations on the set of optimal reinsurance treaties within the class of non-decreasing, 1-Lipschitz functions. Unlike conventional studies, our results address the issue of (non-)uniqueness of optimal solutions and indicate that ceded loss functions beyond the traditional insurance layers can be optimal in some cases. The usefulness of our novel cost-benefit approach is further demonstrated by readily solving the dual problem of minimizing the reinsurance premium while maintaining the risk-adjusted liability below a fixed tolerance level.     

Coping with impact investing antagonistic objectives: A multistakeholder approach

Impact investing (II) aims to achieve positive social and environmental impact and create blended value through sustainable value propositions. Building and expanding on a diverse and growing research corpus on socially responsible investing (SRI), social impact bonds (SIB) and social enterprises our study investigates the structuring elements of impact investing, its dynamics and trajectory. A particular emphasis is placed on the complex web of interactions among numerous stakeholders (i.e. banks, institutional investors, portfolio managers, public, for-profit and nonprofit organizations and social enterprises) with opposing objectives and antagonistic assets in sourcing and channeling financial resources. This paper highlights the importance of adopting a multistakeholder approach when examining the financial ecosystem within which II intermediaries operate and collaborate achieve maximum social and environmental impact.     

On the optimal provision of social insurance: Progressive taxation versus education subsidies in general equilibrium

In this paper we compute the optimal tax and education policy transition in an economy where progressive taxes provide social insurance against idiosyncratic wage risk, but distort the education decision of households. Optimally chosen tertiary education subsidies mitigate these distortions. We highlight the quantitative importance of general equilibrium feedback effects from policies to relative wages of skilled and unskilled workers: subsidizing higher education increases the share of workers with a college degree thereby reducing the college wage premium which has important redistributive benefits. We also argue that a full characterization of the transition path is crucial for policy evaluation. We find that optimal education policies are always characterized by generous tuition subsidies, but the optimal degree of income tax progressivity depends crucially on whether transitional costs of policies are explicitly taken into account and how strongly the college premium responds to policy changes in general equilibrium.     

Income inequality and social preferences for redistribution and compensation differentials

Countries with greater inequality typically exhibit less support for redistribution and greater acceptance of inequality (e.g., U.S. versus Western Europe). If individual nations evolve along this pattern, a vicious cycle could form with reduced social concern amplifying primal increases in inequality. Exploring movements around these long-term levels, however, this study finds mixed evidence regarding the vicious cycle hypothesis. Larger compensation differentials are accepted as inequality grows. Weighing against this, growth in inequality is met with greater support for government-led redistribution. Inequality shocks can be reinforced in the labor market but do not result in weaker political preferences for redistribution.     

On an automatic and optimal importance sampling approach with applications in finance

Calculating high-dimensional integrals efficiently is essential and challenging in many scientific disciplines, such as pricing financial derivatives. This paper proposes an exponentially tilted importance sampling based on the criterion of minimizing the variance of the importance sampling estimators, and its contribution is threefold: (1) A theoretical foundation to guarantee the existence, uniqueness, and characterization of the optimal tilting parameter is built. (2) The optimal tilting parameter can be searched via an automatic Newton’s method. (3) Simplified yet competitive tilting formulas are further proposed to reduce heavy computational cost and numerical instability in high-dimensional cases. Numerical examples in pricing path-dependent derivatives and basket default swaps are provided.     

Signalling and entry deterrence: a multidimensional analysis

I consider whether a privately informed incumbent can use limit pricing and upward distortions in advertising to deter profitable entry. Profitable entry is not deterred when the incumbent is privately informed only about its cost type. Profitable entry may be deterred, however, if the incumbent is privately informed about its cost type and its patience level. An equilibrium foundation is thus provided for the traditional hypothesis that limit pricing and aggressive advertising by an incumbent may deter profitable entry. At a methodological level, the article contributes by characterizing the refined equilibria of a signalling model with multiple dimensions of private information and multiple signals.     

Public help and self help: Towards a dual economic approach in social policy

With the welfare state of many Western societies under increasing economic pressure research into new ways of helping them to adapt to changing socioeconomic environments is emerging. Here the welfare state crisis is seen as three-fold—based on cost, benefit and legitimacy. A dualistic approach to welfare provision, incorporating both state help and individual self help is proposed, using examples in housing and public health.     

Sustainable growth rate,optimal growth rate,and optimal payout ratio: A joint optimization approach

This study investigates the investment decision and dividend policy jointly from a non-steady state to a steady state. We extend ,  and  sustainable growth rate model and develop a dynamic model which jointly optimizes the growth rate and payout ratio. We optimize the firm value to obtain the optimal growth rate in terms of a logistic equation and find that the steady state growth rate can be used as the benchmark for the mean-reverting process of the optimal growth rate. We also investigate the specification error of the mean and variance of dividend per share when introducing the stochastic growth rate. Empirical results support the mean-reverting process of the growth rate and the importance of covariance between the profitability and the growth rate in determining dividend payouts. The intertemporal behavior of the covariance may shed some light on the fact of disappearing dividends over decades.     

The 4% strategy revisited: a pre-commitment mean-variance optimal approach to wealth management

In contrast to single-period mean-variance (MV) portfolio allocation, multi-period MV optimal portfolio allocation can be modified slightly to be effectively a down-side risk measure. With this in mind, we consider multi-period MV optimal portfolio allocation in the presence of periodic withdrawals. The investment portfolio can be allocated between a risk-free investment and a risky asset, the price of which is assumed to follow a jump diffusion process. We consider two wealth management applications: optimal de-accumulation rates for a defined contribution pension plan and sustainable withdrawal rates for an endowment. Several numerical illustrations are provided, with some interesting implications. In the pension de-accumulation context, Bengen (1994)’s [J. Financial Planning, 1994, 7, 171–180], historical analysis indicated that a retiree could safely withdraw 4% of her initial retirement savings annually (in real terms), provided that her portfolio maintained an even balance between diversified equities and U.S. Treasury bonds. Our analysis does support 4% as a sustainable withdrawal rate in the pension de-accumulation context (and a somewhat lower rate for an endowment), but only if the investor follows an MV optimal portfolio allocation, not a fixed proportion strategy. Compared with a constant proportion strategy, the MV optimal policy achieves the same expected wealth at the end of the investment horizon, while significantly reducing the standard deviation of wealth and the probability of shortfall. We also explore the effects of suppressing jumps so as to have a pure diffusion process, but assuming a correspondingly larger volatility for the latter process. Surprisingly, it turns out that the MV optimal strategy is more effective when there are large downward jumps compared to having a high volatility diffusion process. Finally, tests based on historical data demonstrate that the MV optimal policy is quite robust to uncertainty about parameter estimates.     

Influence of perceived risk on entrepreneurial desirability and feasibility: multidimensional approach for nascent entrepreneurs

This study examines the influence of perceived risk on entrepreneurial desirability and feasibility as determining factors in the intention to start a self-owned business. Specifically, a multidimensional approach is taken to examine the different types of risks associated with entrepreneurship: economic, social, time, health and personal risks. The results obtained from a sample of 376 new entrepreneurs in Mexico confirm the fact that the perceived desirability and feasibility have a significant and positive effect on the intentions to start their own company. On one hand, the empirical evidence obtained shows a heterogenic effect of the risk dimensions associated with entrepreneurship on the perceived desirability and feasibility in their behaviour. Therefore, it was found that the economic risk associated with entrepreneurship has a negative effect on the feasibility to start a business, but does not significantly influence the desirability of that behaviour. On the other hand, a significant effect from the risk related to health is not seen on desirability and feasibility, but the negative influence of personal risk is empirically supported for both variables. Finally, the results obtained related to social and time risk are contradictory. Social risk negatively influences entrepreneurship desirability, but a positive effect is observed on the feasibility to create a business. For its part, the empirical evidence obtained does not support any effect of the time risk on the perceived feasibility of starting a business, but there is a positive on entrepreneurship desirability. These results, which are contrary to the traditional concept of risk as a barrier to entrepreneurship, are justified by the vocational nature of this behaviour and by the social sacrifices that are sometimes necessary to be able to make a business work.     

On time: contributions from the social sciences

This paper provides a brief review of the anthropology and psychology literature as it relates to time, an important variable in finance. First, the paper discusses ways that individuals represent time, and introduces cultural variations in the perception of time. Then the experience of time passing, and behavioral pace, is discussed. The succession of time and the orientation toward past, present, and future, are described. The paper may provide implications for academics whose finance research is related to behavior over time.     

The objectives of financial reporting: a historical survey and analysis

This article is a survey and analysis of the succession of writings on the objectives of financial reporting during the past 90 years. Its aim is to contribute towards an understanding of the origins, significance, and limitations of conceptual frameworks. The article begins with a review of the extensive literature, including the series of recommended and approved conceptual frameworks, in the USA and then proceeds to examine the corresponding literatures in Great Britain, Canada, and Australia, followed by a discussion of the framework issued by the International Accounting Standards Committee in 1989 and Chapters 1 and 3 of the framework issued by the International Accounting Standards Board and Financial Accounting Standards Board in 2010. Summary remarks about Continental Europe conclude the survey. Attention is drawn to the criticisms of the objectives approach as well as to its possible perverse consequences for the remainder of the framework. In the course of the survey, there is an attempt to trace the evolution of stewardship and conservatism, or prudence, in the series of frameworks.     

Money and redistribution: Revisionist notes on a problem of samuelson

This paper disputes the view that money remedies a ‘friction’ of overlapping generations. Its arguments are based upon the numerical example of Samuelson (1958). It shows that there is a one-to-one mapping from equilibria in a system of complete, timeless markets to the sequential equilibria usually studied. Friction is absent in that sense. Further, monetary injection is not unique in converting inefficiency to efficiency. The same conversion is possible in markets for consumption loans. The common factor of both conversions is redistribution of wealth prior to trade. Such redistributions correspond to redistributions of numeraire in complete, timeless markets.     

Short horizons, time inconsistency, and optimal social security

We study the optimal provision of social security in a dynamically efficient economy using a continuous-time overlapping-generations model in which consumers have short planning horizons. The short-horizon mechanism leads to dynamic optimization that is time-inconsistent over the life cycle. Our calibrated general-equilibrium results are generally supportive of social security for a wide array of social welfare functions. Thus, the basic life-cycle model can be augmented with only this slight twist in order to rationalize a social security program with the current U.S. tax rate.     

Corporate social responsibility reports: topic analysis and big data approach

ABSTRACT

This paper performs topic modeling using all publicly available CSR (Corporate Social Responsibility) reports for all constituent firms of the major stock market indices of 15 industrialized countries included in MSCI Europe for the sample period from 1999 to 2016. Our text mining results and LDA analyses indicate that ‘employees safety’, ‘employees training support’, ‘carbon emission’, ‘human right’, ‘efficient power’, and ‘healthcare medicines’ are the common topics reported by publicly listed companies in Europe and the UK. There is a clear sector bias with industrial firms emphasizing ‘employee safety’, Utilities concentrating on ‘efficient power’ while consumer discretionary and consumer staples highlighting ‘food waste’ and ‘food packaging.’ To produce these results, we used a battery of python code to organize the hundreds of reports downloaded from Bloomberg and the internet, the latest R-algorithm to estimate LDA (Latent Dirichlet Allocation) model and the LDAvis interactive tool to visualize and refine the LDA model.     

Annuities and lifetime income: the Anglo-Saxon experience

A number of western industrialized nations have found themselves in a similar position to the United States today: an aging population leading to increasing, and perhaps unsustainable, expenditures on a traditional social security system. This article examines the risks that individuals face in retirement, describes the role of annuities in addressing those risks and examines why annuitization rates are so low. It then reviews the pension structures in the United Kingdom, Australia and New Zealand--countries with similar governmental and economic structures to those of the United States--and describes how these have impacted those countries' annuitization rates.     

On the optimal regulation of financial guarantees

This paper examines the economic basis for the regulation of financial guarantees or commitments by a third party to provide payments in the event of default. It is argued that regulators can serve as monitors who minimize information or agency costs. However, in the U.S. markets private rating agencies provide such a monitoring function so that regulation is warranted only in the event that there are problems with these private monitors. In addition, since guarantees are directly linked to securitization, regulatory actions that encourage securitization tend to encourage the growth of financial guarantees.