Local indirect least squares and average marginal effects in nonseparable structural systems

We study the scope of local indirect least squares (LILS) methods for nonparametrically estimating average marginal effects of an endogenous cause X on a response Y in triangular structural systems that need not exhibit linearity, separability, or monotonicity in scalar unobservables. One main finding is negative: in the fully nonseparable case, LILS methods cannot recover the average marginal effect. LILS methods can nevertheless test the hypothesis of no effect in the general nonseparable case. We provide new nonparametric asymptotic theory, treating both the traditional case of observed exogenous instruments Z and the case where one observes only error-laden proxies for Z.     

Fair valuation of insurance liabilities via mean-variance hedging in a multi-period setting

A general class of fair valuations which are both market-consistent (mark-to-market for any hedgeable part of a claim) and actuarial (mark-to-model for any claim that is independent of financial market evolutions) was introduced in Dhaene et al. [Insurance: Mathematics & Economics, 76, 14–27 (2017)] in a single period framework. In particular, the authors considered mean-variance hedge-based (MVHB) valuations where fair valuations of insurance liabilities are expressed in terms of mean-variance hedges and actuarial valuations. In this paper, we generalize this MVHB approach to a multi-period dynamic investment setting. We show that the classes of fair valuations and MVHB valuations are equivalent in this generalized setting. We derive tractable formulas for the fair valuation of equity-linked contracts and show how the actuarial part of their MVHB valuation decomposes into a diversifiable and a non-diversifiable component.     

Recurrence relations for moment and conditional moment generating functions of generalized order statistics

In this paper, we obtain recurrence relations for moment and conditional moment generating functions of generalized order statistics (gos) based on random samples drawn from a population whose distribution is a member of a doubly truncated class of distributions denoted by . Members of the class are characterized in Section (2) based on recurrence relations for moment generating functions (moments) of gos. In Section (3), we shall characterize members of the class based on recurrence relations for conditional moment generating functions (conditional moments) of gos. These results are specialized to the left, right and non-truncated cases. Ordinary order statistics and ordinary record values are also obtained as special cases of the gos. Characterizations of some members of class such as the Weibull, compound Weibull, Pareto, power function (beta is a special case), Gompertz and compound Gompertz distributions are given as illustrative examples.     

Demand for and Assessment of Audit Quality in Private Companies

Financial statement audits are mandated in most countries, thus making it difficult to distinguish between auditing driven by private incentives versus that driven by regulation. Who would ask for an audit, and how would its quality be assessed in the absence of regulation? Many private companies in Canada get their financial statements audited even though the law does not require it. In this field study, we conduct interviews to discover reasons for demanding an audit, and criteria used to assess their quality. Our study reveals that both internal stakeholders (management, boards, and employees) as well as external stakeholders (customers, banks, and private equity firms) request audits. Users evaluate audit quality based on a variety of criteria such as the auditor's accounting expertise, the absence of errors, the fees involved, risk assessments offered, allocation of effort, internal control, and general business advice. Implications for audit regulations are discussed.     

Evaluation of risk communication for rural water supply management: a case study of a coastal area of Bangladesh

Consumption of safe drinking water is an important public health issue. In this study, we considered the risk communication topic of human health concerns related to unsafe water consumption in rural coastal areas of Bangladesh, where potable water is scarce. Our objective was to investigate the level of knowledge that rural residents had concerning safe water consumption and to evaluate the effects of risk communication on knowledge and behavior changes. We considered four rural villages of southwest coastal areas of Bangladesh as sample. This study was based on the results of a questionnaire survey administered before and after risk communication. The pre- and post-survey were conducted during August 2009 and March 2010, respectively. Data were collected from 120 women aged 18–60 years. Two format presentations, with and without water quality information, were used to convey the risk messages. In the present study, indicator bacterial (Escherichia coli) contamination levels in drinking water sources were considered as water quality information since absence of E. coli is the safety margin for the detection of disease-causing organisms. Analysis of the survey data revealed that risk communication can be vital to changes in water consumption knowledge and behavior. Overall general knowledge scores were almost same in the pre-survey for without- (mean score 3.16) and with-information (mean score 3.10) villages. However, after risk communication, there were detectable increases in the mean scores (mean scores, 3.54 and 3.64, respectively, on a 4 point scale) for both groups. Furthermore, risk communication with water quality information appears to be a more effective method of risk communication. Dissemination of risk messages was also higher in with-information villages. Seventy four percent of the participants from with-information villages reported that they had discussed the risk messages with family members and neighbors, compared to 59% of those from without-information villages. The results of this study revealed that age, education, and distance of water sources influence changes in consumption and maintenance behavior. These findings suggest that, in addition to installation of water supply facilities, there is a need to address the low levels of knowledge about safe water consumption in rural coastal communities of Bangladesh. Location specific water quality information may be more useful to convey health risk messages concerning unsafe drinking water consumption.     

Governing Enclosure: The Role of Governance in Producing Gated Communities and Guarded Neighborhoods in Malaysia

Enclosed residential areas are proliferating in Malaysian cities, in common with many other parts of the world. The production of gated communities and guarded neighborhoods in Malaysia reveals the active role of the state in creating conditions that support enclosure and securitization of space. This article examines the role of governance in producing residential enclaves that reinforce segregation and fragment urban landscapes. Based on a study of gated communities in Malaysia, we argue that governments, corporations and citizen groups collaborate within a complex governance system that (re)produces enclosure. Neoliberal market principles fuse with ethnic politics, cultural predilections and economic imperatives to generate a socially and spatially fragmented urban landscape where security concerns dominate and where citizens culturally, physically and symbolically segregate themselves from others.     

Electricity Tariff Changes and Consumer Sentiment on Household Consumption Expenditure in Malaysia

Purpose

This study investigates the impact of the current electricity tariff, represented by optimized tariff calculation, on Malaysian household’s consumption across different levels of income.

Design/methodology/approach

The input-output (IO) model has vastly been used in many energy economics literature that presented the matrix of production between various sectors in an economy. This study aggregated the 124 subsectors in IO Price Table 2015 into 12 groups of consumption of goods and services based on Household Expenditure Survey 2019 (HES 2019) to meet the study’ objectives.

Findings

This study found that in all simulations, high-income earners would be highly affected by the tariff changes. The lower the increment level in electricity tariff rate, the lower the magnitude would be on the changes of household expenditure level.

Research limitations/implications

Optimization in electricity tariff consumptions can pattern the Malaysian household’s consumption across different levels of income efficiently.

Practical implications

Useful to all consumer in the Malaysia economic business sector to predict their energy consumption up to optimum level.

Social implications

The study’s findings can benefit the society in optimiza their electricity consumption since everyone requires the energy for basic needs in their life.

     

The role of executives in hostile takeover attempts

This paper proposes a two-stage game theoretic model where the discretionary power of executives acts as an implicit defense against hostile takeovers. Following managerial enterprise models, this paper analyzes the effects of discretionary power of target’s executives over R&D and advertising expenditures in defeating hostile takeover attempts. It is shown that in vertically differentiated industries, in equilibrium, target’s executives keep low level of R&D and advertising expenditures to make their firm an unattractive target for hostile takeovers. The model reveals that executives are influenced by their self-interest of monetary and non-monetary benefits and this self-interest makes the industry more differentiated.     

Roads out of poverty? Assessing the links between aid,public investment,growth, and poverty reduction

This paper presents a dynamic macroeconomic model that captures key linkages between foreign aid, public investment, growth, and poverty. Public capital is disaggregated into education, core infrastructure, and health. Dutch disease effects associated with aid are accounted for by endogenizing changes in the relative price of domestic goods. The impact of shocks on poverty is assessed through partial elasticities and household survey data. The model is calibrated for Ethiopia and changes in the level of nonfood aid are simulated. The amount by which (nonfood) aid should increase to reach the poverty targets of the Millennium Development Goals is also calculated, under alternative assumptions about the degree of efficiency of public investment.