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The purpose of this paper is to investigate client influence on mortgage valuation in Nigeria to establish and rank the means of influence clients employ, and the impact of firm characteristics on client influence.

A combination of cross-sectional survey and focus groups research designs was adopted. Questionnaire structured on five-point Likert format was used to collect data from a sample of valuation firms in five Nigerian cities. Descriptive statistics, χ2, and moderated hierarchical linear model were used for data analysis.

Clients’ means of influence on valuation are more of subtle approach than threat or coercion. The most prevalent means are respectively, plea for assistance, promise of continued retainership on banks’ valuer panels, and disclosing the loan amount. Client influence differs across cities; firm characteristics have no influence on client pressure.

The research provides basis for valuation bodies to review practice rules and standards and seek for legislation for valuer independence. It can serve as material for teaching and training in professional ethics.

Biased valuations jeopardises credit risk mitigation process with potential for destabilising banks, finance sector, and consequences for the economy.

The study provides empirical evidence of the nature of client influence across several major Nigerian cities. In contrast to existing Nigerian studies that focus on single cities, the study covers several cities. It therefore provides a broad basis for problem-solving and decision-making.

Explains that bias in human problem‐solving behaviour may sometimes conflict with the assumptions that underlie normative models of valuation. Possibilities include faulty perceptions of the task, routinized valuation procedures that rely heavily on pending sale price‐knowledge and reliance on innate and distorting problem‐solving heuristics. Describes an experiment conducted with appraisers in the USA and valuers in the UK to investigate the impact of price knowledge on the process of valuation and the search and selection of comparable sales. Concludes that both appraisers and valuers can be subject to price‐knowledge bias, reflected in the choice of the less than “best” comparables and in the actual value estimate. Discusses how cultural differences in the appraisal and valuation processes, especially in the transparency of comparables adjustments, help to explain these effects.

The purpose of this study is to evaluate the impact of theoretical knowledge related to financial behaviour and especially anchor effects.

The study design is based upon an experiment divided into two parts, before and after the development of the course curriculum for the course introducing behavioural finance for undergraduate real estate students.

The study concludes that the anchor effect is persistent also after introducing theoretical knowledge regarding financial behaviour and anchor effects. To conclude the results, in this study, indicates that the appraisal of properties are dependent on the individual’s cognitive capacity to mitigate anchor effects. There are epistemological assumptions underlying the belief in the individuals’ capacity to handle anchor effects that might provide biased appraisals. These assumptions need to be carefully tested and treated to increase the accuracy of property appraisals.

The study result also highlights the possibility that current literature in valuation, and learning activities, does not emphases and stimulate readers to critical thinking. This paper would, therefore, propose also other real estate education programmes to be aware of the potential lack of critical thinking among the students.

It provides an insight regarding how appraisal of properties is dependent on the individual’s cognitive capacity to mitigate anchor effects.

As commonly pointed out in most instructional and operational manuals, and the benefit–cost and valuation texts on which they are largely based, there is general agreement among economic analysts that the economic values of gains and losses are correctly assessed by two different measures. The value of a gain is appropriately measured by the maximum sum people are willing to pay for it (the so-called WTP measure) – the amount that would leave them indifferent between paying to obtain the improvement and refusing the exchange. The value of a loss is accurately measured by the minimum compensation people demand to accept it (the so-called willingness-to-accept, or WTA, measure) – the sum that would leave them indifferent between being paid to bear the impairment and remaining whole without it.

This paper examines the effects and root causes of client influence within the valuation profession in Kenya.

This study adopted a mixed research design incorporating a survey and experiment of registered and practising valuers in Kenya and interviews of key informants from registered and practising valuers, valuers' clients (commercial banks) and professional bodies.

The study found that client influence negatively impacts the valuation profession, contributing to inaccurate valuation outcomes, and it exists because of the valuation environment, represented by limited and unreliable information in Kenya and many other developing countries.

This study makes a critical contribution to the empirical literature as it introduces new insights into the impacts and causes of client influence by demonstrating how the valuation environment, characterised by poor information, contributes to client influence in Kenya, which is typical of many other developing countries.

This study aims to consider the theoretical potential for client influences to bias valuations, and assess the validity of the resulting framework by seeking input from practising valuers and commissioning clients.

Reports upon a series of individual interviews with senior New Zealand property executives responsible for the management of large portfolios of institutional‐grade property assets.

The results indicate that clients with expertise and a high level of knowledge of the property market are able to influence valuers by way of expert and information power. Opportunities to exert influence are afforded by the control the client has over the valuation process including the common practice in New Zealand of permitting clients to review draft valuations prior to their formalisation.

The general aim of this paper is to build on the theory as opposed to testing theory. In order to achieve this aim a qualitative approach was taken, this permits a focus on the search for meaning and understanding. As in most qualitative research therefore it does not claim that the findings can be generalised to a wider population, but it provides theory for later testing. The results however, not only provide a more in‐depth understanding of the process, motivation and opportunities for client influence but also help to highlight the justification for further theoretical and empirical research in this area in order to achieve a more in‐depth knowledge of the valuation process.

This paper succeeded in its objective of developing an holistic and deeper understanding of valuation by gaining insights from clients involved directly in the commissioning of valuations for property funds in New Zealand. The results suggest that there are a number of specific influences that have not been previously documented, but appear to have the potential to affect valuation outcomes and valuations that are ultimately reported to stakeholders.

Valuation accuracy usually conjures up images of empirical studies of comparisons between sales and valuations and different valuations of the same properties, and a number of references to these studies are included in the paper. However, this paper concentrates on the institutional influences which impact on valuations and their accuracy. The overall aim of this paper is to examine the legal interpretation of valuation inaccuracy in the UK. This might seem a bit parochial in the context of a World Valuation Congress. However, cases in many countries in the Commonwealth form precedents for each other and therefore decisions in, for example, the UK and Australasia, are drawn on by others in reaching decisions. The paper also reaches conclusions which have wider implications for all jurisdictions which have valuation disputes settled in courts, tribunals and any other quasi‐judicial body.

The potential application of data mining techniques in the extraction of information from property data sets is discussed. Particular interest is focused upon neural networks in the valuation of residential property with an evaluation of their ability to predict. Model testing infers a wide variation in the range of outputs with best results for stratified market subsets, using postal code as a locational delimiter. The paper questions whether predicted outcomes are within the range of valuation acceptability and examines issues relating to potential biasing and repeatability of results.

Considering the changing dimensions of client influence in the emerging sub-market in Nigeria, different from previous general insinuations, this article examines the new strategies adopted by clients to influence estate surveyors and valuers (ESVs), factors that predispose ESVs to client influence and the effects of clients' influence on valuation outcomes and real estate markets in emerging sub-market, using Ibadan market as the study area.

The paper is situated within a client influence assessment framework, modified to reflect contextual incidents. Contextualization was made possible with the involvement of both practitioners and academic researchers. Validated copies of the questionnaire were administered to the registered practicing ESVs in an intact group during their monthly state (provincial) meeting and through direct delivery at their firms. Data collected were analyzed using descriptive and inferential statistics.

Contrary to the previous studies, the authors found no significant relationship between ESV professional qualifications, the firm's staff strength and the frequency of clients' influence in valuation assignments. Hiding important information and clauses, begging, lobbying, and seeking undue favor and promises for future jobs or appointments are the influencing strategies clients employ to pressure valuer. The topmost factors are emerging sub-market and economic-induced factors, lack of due process, and adequate transparency on the parts of firms and Valuers. It was established that the new dimension of client influence leads to the mortgage valuation accuracy dilemma, discredit of professional confidence, default and financial distress, and generating mistrust in the property market.

The implication is the new dimension of client influence, different from the previous studies, thus calling for professional and policy attention. As real estate investment and transactions transcend globally, understanding the local sub-market condition is imperative.

The novelty of the paper is the exposition on the dimensions of client influence within the economy and the implication for the professional body regulatory policy.

This paper aims to explore the drivers behind the accuracy of self-reported home valuations in the Warsaw (Poland) housing market.

In order to achieve the research goal, firstly, unique data on subjective residential property values estimated by their owners were compared with market-justified ones. The latter was calculated using geographically weighted regression, which allowed for taking into account spatially heterogeneous buyers' housing preferences. An ordered logit model was then used to identify the factors influencing the probability of the occurrence of bias towards over or undervaluation.

The results of the study revealed that, on average, homeowners overvalued their properties by only 1.94%, and the fraction of interviewees estimating their properties accurately ranges from 20% to 68%, depending on the size of the margin of error adopted. The drivers of the valuation bias variation were the physical, locational and neighbourhood attributes of the property as well as the personal characteristics of the respondents, for which their age and employment situation played a key role.

In contrast to previous studies, this is the first to examine drivers behind the accuracy of self-reported home valuations in a Central and Eastern Europe country. In addition, this work is the first to consider heterogeneous housing preferences when calculating objective property values.