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The paper addresses the puzzling phenomenon of the ubiquity of economic forecasting, of which property market forecasting is but one instance, on the one hand, and the unreliability of such forecasts, on the other hand. The paper explains why property market forecasts fail, in a non-trivial sense, and why this problem is irredeemable.

This was a conceptual paper and was based on original thought and literature review.

This paper attributes the failure of property market forecasts to the inappropriate application of the methodology of the natural sciences to the social sciences by mainstream economics. Specifically, the problem is located in the positivist philosophy and the assumptions of methodological individualism and rational choice theory underlying neoclassical economic theory.

The paper makes an original contribution by clearly showing why and how the methodology of the natural sciences, especially physics, has been applied to economics and property market analysis, why this is inappropriate and why it leads to failure. The paper introduces a debate that has hitherto been mostly confined to philosophy and mainstream economics into the property or real estate discipline and in a manner that is accessible to a non-philosophy audience.

This paper develops a conceptual framework that is applicable in various compensation settings vis-a-vis relevant legal frameworks, compensation processes and practices, compensation outcomes and adequacy of resultant compensation by using a common evaluative framework, to address the lack of such a conceptual framework in the compensation literature. Also, by developing a new conceptual framework, this paper provides a platform and an analytical tool for anchoring and analysing future research on compensation for expropriation of various property rights.

This conceptual paper is based on original thought and review of literature on compensation for expropriation.

A critical analysis of existing literature on compensation for expropriation of customary properties reveals that most studies are inadequately informed by relevant compensation theories and that each study uses its own tailor-made analytical framework. This entails that there is no general conceptual framework for anchoring new studies in compensation and aid in extrapolating their results to similar populations and contexts.

This paper makes novel contribution to knowledge by developing a new conceptual framework for analysing compensation for expropriation of customary property rights, which is not there currently. Essentially, by developing the new conceptual framework, this paper provides a basis for anchoring new research works in compensation and their analyses, thereby making a further contribution to knowledge.

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 paper examines participants' opinions on whether valuation education and training in Kenya is adequate while comparing it to actual material conditions.

This research is based on a survey of registered and practicing valuers in Kenya, interviews of key informants from professional bodies and the five universities offering real estate degree courses in Kenya, and a review of Kenya's real estate curricula and Institution of Surveyors of Kenya (ISK) training.

It was perceived that while valuer education and training in Kenya is satisfactory, it differs from actual material conditions as it fails to cover practical issues in valuation practice.

The study makes a critical contribution to the empirical literature by introducing new insights in valuation education and training in Kenya.

The finance sector and property market challenges in some global regions have been linked to inefficient property valuation practices. As a result, global valuation professional organisations have set up standards and norms to promote efficient and transparent operations in the property valuation industry. Despite these concerns, valuation industries in some countries still face challenges that threaten their smooth operations. One of such is Nigeria, which faces various problems attributable to its valuation process and regulatory system. Consequently, this paper aims to examine the valuation process in Nigeria with a bid to identify the weaknesses in its valuation process and how it contributes to problems identified in the literature.

A qualitative research approach was adopted, and semi-structured interviews were conducted with 12 valuers across different segments of the valuation industry in Nigeria. The data were subjected to thematic analysis using Nvivo 12 software.

Our findings indicate a fundamentally weak valuation system and regulatory system marked by an opaque engagement process, underpricing of valuation services, inefficient domestication of international valuation standards, poor implementation and monitoring system and concerns about the training and certifications to meet global norms. These identified weaknesses contribute to and fuel problems such as client influence and valuation inaccuracy, among others.

The study has some implications for the valuation professional organisations in Nigeria. The valuation professional organisations should devise systems and enact standards that go beyond solely replicating the IVS and RICS Red Book to effective domestication to suit local norms. Given the inefficient implementation and monitoring system, the use of proptech that supplements legal instruments needs to be adopted. Furthermore, the regulations should be strengthened in line with the trends of sustainability, duty of care and use of data as advocated by the IVSC. This will promote trust in the system and allow global stakeholders to transact more confidently with the Nigerian industry, as the current set-up does not evoke sufficient confidence in the system to deliver excellent and transparent valuation assignments.

This study provides perspective from an untransparent property market on the implications of a poor regulatory system and valuation process for valuers and stakeholders who may rely on valuations conducted in such an environment for decision-making. The findings from this study potentially provide input for the valuation professional organisation in Nigeria in identifying the gaps in their framework and current practices and providing some suggestions to promote improvements.

Improving valuation accuracy, especially for sale and acquisition purposes, remains one of the key targets of the global real estate research agenda. Among other recommendations, it has been argued that the use of technology-based advanced valuation methods can help to narrow the gap between asset valuations and actual sale prices. The purpose of this paper is to investigate the property valuation methods being adopted by Australian valuers and the factors influencing their level of awareness and adoption of the methods.

An online questionnaire survey was conducted to elicit information from valuers practising in Australia. They were asked to indicate their level of awareness and adoption of the different property valuation methods. Their response was analysed using frequency distribution, χ² test and mean score ranking.

The results show that the traditional methods of valuation, namely, comparative, investment and residual, are the most adopted methods by the Australian valuers, while advanced valuation methods are seldom applied in practice. The results confirm that professional bodies, sector of practice and educational institutions are the three most important drivers of awareness and adoption of the advanced valuation methods.

There is a need for all the property valuation stakeholders to synergise and transform the property valuation practice in a bid to promote the awareness and adoption of advanced valuation methods, (e.g. hedonic pricing model, artificial neural network, expert system, fuzzy logic system, etc.) among valuers. These are all technology-based methods to improve the efficiency in the prediction process, and the valuer still needs to input reliable transaction data into the systems.

This study provides a fresh and most recent insight into the current property valuation methods adopted in practice by valuers practising in Australia. It identifies that the advanced valuation methods could supplement the traditional valuation methods to achieve good practice standard for improving the professional valuation practice in Australia so that the valuation profession can meet the industry’s expectations.

The complexity of property valuation, coupled with valuers’ cognitive limitations, makes some degree of error inevitable in valuations. However, given the crucial role that valuations play in the efficient functioning of the economy, there is a need for continuous improvement in the reliability of reported values by enhancing the quality of the decision-making process. The purpose of this paper is to review previous research on valuation decision-making, with particular interest in examining the approaches to improving the quality of valuation decisions and identifying potential areas for further research.

The paper adopts a narrative approach to review 42 research articles that were obtained from Scopus and Web of Science databases and through author citation searches.

Our findings show that existing literature is skewed towards examining the use of technology in the form of decision support systems (DSS), with limited research attention on non-technological (i.e. behavioural) approaches to improving the quality of valuation decisions. We summarise the non-technological approaches and note that much of the discussions on these approaches often appear as recommendations arising from other studies rather than original investigations in their own rights.

We conclude that studies investigating the effectiveness of the non-technological approaches to improving valuation decision-making are lacking, providing various avenues for further research.

This paper presents the first attempt to provide a comprehensive overview of non-technological approaches to improving the quality of valuation decisions.

Given the significant role played by valuers and the evidence of a lack of independence in some property valuation industries, particularly in emerging markets, this study analyses the issue of client influence in property valuation by providing a valuer-client perspective and measuring the interrelationships between the clients' influence factors to identify causal factors of prominence, which can assist in developing solutions to address the clients' influence issue.

The study used a mixed-method approach. Firstly, interviews were conducted with ten property valuers and five financial institution staff in Nigeria, and the data were subject to thematic analysis using Nvivo 12 software. A matrix questionnaire survey was administered to the valuers, and the responses were analysed using the fuzzy Decision-Making Trial and Evaluation Laboratory (DEMATEL) method.

The results indicate that institutional clients, loan-seeking customers, property valuers and the perception of corruption within the Nigerian environment fuelled the issue of clients' influence. Based on the measurement of the interrelationship between the 14 identified client influence factors, the type of company, perception the public has of the industry, size of the firm, relationship with the client, type of client and regulatory framework were the factors of prominence.

The findings of this study bear huge implications for Nigeria and other similar structured property markets facing the issue of clients' influence in property valuation. With the prominent factors bearing root in a mix of client, valuer and environmental factors such as the valuation structure, process and public perception, there is a need for solutions that level the playing field between institutional clients and valuers, reinforce transparency and establish excellent regulatory standards to address the issue of clients' influence.

This study is the first to measure the interrelationships between the clients' influence factors to identify the prominent causal factors. Accordingly, considering the multi-factors, the research is novel as it focusses on those factors that would likely lead to other factors, thereby providing opportunities to develop solutions that focus on those factors of prominence. Secondly, the study deviates from the narrative on clients' influence in property valuation, which pits it as solely a client or valuer factor, by showing how the interplay of the stakeholders' interests and the environment promotes the issue in a non-transparent property market.

The property valuation process involves the property valuer expressing expertise in reaction to a client' instruction. However, there are instances where clients, driven by self-interest, impose their will to influence valuers into returning property valuation figures that are not the true reflection of the valuer's assessment. This paper set out to revisit the issue of client influence in property valuation by conducting a scoping review to establish key findings, gaps, implications and solutions.

In total, 21 articles on client influence published from 1997 till date were systematically obtained from Scopus, Web of Science, Google Scholar and through citation searching and reviewed through a “Patterns, Advances, Gaps, Evidence for practice and Research recommendations (PAGER)” framework. Further analysis and visualisation were performed using VOSviewer software.

This study found that based on the number of studies, the issue of client influence has received empirical attention, which is few and far between, with financial institutions identified as the major culprits in most of those studies. One core reason for this is the stakes involved in the finance sector, which relies on property valuation for loan disbursement and performance measurement. Furthermore, previous studies have focused on identifying the issue through the lens of the property valuer without giving recourse to the client's perspective on what may drive the issue.

This study provides evidence that the issue of client influence persists, with some elements of bias in the methodology. Furthermore, the solutions proffered have focused on the valuer and have not been tested to ascertain their effectiveness. Future studies can consider examining the issue from the perspective of financial institutions.

This study is one of the first review studies on client influence on property valuation. It is also the first to identify a pattern in client influence studies that points to the issue being perpetuated by financial institutions. Furthermore, it is the first in recent time to reveal how limited study has been conducted in the area as well as the solutions which have neither been tested nor implemented.