A MULTILAYER VIEW OF SYSTEMIC IMPORTANCE AND AGGREGATE FLUCTUATIONS

Economic systems are composed of multiple interrelated groups of agents and with multiple sources of network externalities present. This can give rise to novel systemic risks. We propose a multilayer model to understand this phenomenon. The model features complementary or substitutionary actions of agents active in multiple groups and extends the network concepts of systemic importance and microinduced aggregate fluctuations to their multigroup counterparts. The multilayer allows for the propagation of shocks through both intra- and interlayer margins. The interlayer margin can be large enough to induce a reordering of systemic importance indicators as compared to singular group considerations, and produce volatility levels that are larger than economies consisting of a single group of agents.     

The Effects of Digital Media Advertising Content on Message Acceptance or Rejection: Brand Trust as a Moderating Factor

The goal of this study is: (1) to expand upon prior research into general online content, (2) to analyze the acceptance and rejection factors of Internet advertising messages, and (3) to examine the moderating role of brand trust in this process. The results show that, when displaying intentions relating to the acceptance of online advertising, brand trust is not a significant influencing variable. However, when studying the intent to reject a message, brand trust does act as a barrier against the negative effect of irritation, while when this trust does not exist, irritation exercises a significant negative effect on advertising value.     

Entrepreneurship and Development: The Role of Clusters

Defining entrepreneurship as the creation of new organisations,this paper explores,from a literature review standpoint,the moderating effect of clusters on the impact of entrepreneurship on development. To identify potential causes of this moderating effect, the paper focuses on three different impacts: entrepreneurship on development, clusters on development,and clusters on entrepreneurship. The findings of the paper are threefold.First,entrepreneurship is positively associated with economic growth.Given the importance of entrepreneurship in changing the economic and social structure of the economy,more research on the impact of entrepreneurship on development - i.e. focus on capabilities rather than on output - is needed. Second,it is difficult to reach empirical generalisations on the impact of clusters on development and entrepreneurship given conceptual and methodological constraints. Both positive results and caveats are found at different levels of analysis and at different stages of development of a cluster. Finally, given the previous finding, it is difficult to generalise on the impact of clusters on the association between entrepreneurship and development. Consensus on and validity between conceptual and operational definitions of clusters; consideration of context as well as process and, therefore, quantitative and qualitative methods; and differentiation between levels of analysis controlling for cluster stage and strength are the main criteria for future studies to consider to disentangle the impact of clusters on entrepreneurship, development and the association between entrepreneurship and development.     

Monte Carlo Evidence on Cointegration and Causation

The small sample performance of Granger causality tests under different model dimensions, degree of cointegration, direction of causality, and system stability are presented. Two tests based on maximum likelihood estimation of error-correction models (LR and WALD) are compared to a Wald test based on multivariate least squares estimation of a modified VAR (MWALD). In large samples all test statistics perform well in terms of size and power. For smaller samples, the LR and WALD tests perform better than the MWALD test. Overall, the LR test outperforms the other two in terms of size and power in small samples.     

Accounting Practice Harmony, Accounting Regulation and Firm Characteristics

Harmonization of accounting standards has been the subject of many initiatives taken at international, regional and national levels in recent years. Policy makers advancing this idea believe that accounting regulation harmony will lead to practice harmony. The literature in the area of accounting harmonization also generally relies on a similar belief.
Comparing accounting regulations and accounting practices of two countries that are pursuing a program of harmonization, Australia and New Zealand, revealed some association between the levels of regulation harmony and practice harmony. Although this indicates that regulatory harmony can improve practice harmony, the association is 'noisy', suggesting that there are also other factors affecting practice harmony. Evidence adduced here shows that accounting practice harmony is also associated with firm-specific characteristics.     

Globalisation and the Major Accounting Firms

Driven mainly by deregulation and technological change, globalisation is a common tendency among firms seeking better opportunities and lower costs. This paper discusses the nature of globalisation in accounting firms, in particular the "Big 5" (the paper was written before the Big 5 became the Big 4). The firms seem to exhibit two forms of the phenomenon: establishment globalisation (spread of a firm's establishments in different locations) and product globalisation (addition of new services in a bid to extend global reach). The paper examines the effect of globalisation on the demand for accounting information and how globalisation transforms the major accounting firms.     

Cointegration and causality in international agricultural economics research

A review of literature on applications of Granger causality to problems in international agricultural economics research is summarized. The review relates to cointegration theory, and it identifies the areas where recent econometric developments may be of value. Testing procedures are outlined, and a discussion is provided on questions such as non-stationarity and asymptotic distribution of non-causality tests, the relationship between cointegration and causation, the relative merits of various testing procedures, and concerns about testing bivariate causality in higher dimensional models. Finally, a recent econometric development is discussed and its future use in applied research is discussed.     

Optimal expenditures on police protection

The object of this paper is to propose an approach for operationalizing Rubin's (Minimizing Harm: a New Crime Policy for modern America, Westview Press, Boulder, CO, 1999) idea that minimizing harm is a solution to the crime policy conundrum. Harm is defined to be the total cost of damages due to crime plus the cost of police protection. Its minimization determines optimal expenditures for protection. This is an appropriate basis for specifying the optimal size of a police force, and provides a term of reference for actual policy decisions. Data for the states of the US are used to make the presentation more concrete and to clarify some of the problems that must be solved in actual applications of the method suggested. This does not eliminate the applicability of the approach to any other country or to the geo-political subdivisions within a country. The results obtained are of interest to policy makers dealing specifically with expenditures for police at local, regional or national levels or, more generally, with similar uses of public or private financial resources.     

Continental European accounting model and accounting modernization in Germany

Classification techniques based on one or few dimensions are widely used in research studies and textbooks to explain and predict the development of accounting systems internationally. However, their usefulness in international accounting has been limited in today's globalized world. For example, in the context of the EU, IFRS are required for consolidated accounting, while national accounting systems continue to be the dominant system for unconsolidated accounting in many countries. Using Germany as a case study, the objective of this paper is to examine whether Germany can still be classified within the Continental European model of accounting following the Act to Modernize Accounting Law (Bilanzrechts-modernisierungsgesetz — BilMoG), which was promulgated on May 29, 2009. This Act introduced some major reforms to the German Commercial Code (Handelsgesetzbuch — HGB), such as removing the close connection to tax rules and introducing new recognition and valuation regulations, which changed traditional principles of orderly accounting (Grundsätze ordnungsmäßiger Buchführung). As a result, the current German approach of financial reporting separates Germany from the traditional Continental European model of accounting and moves it somewhere on a spectrum between the traditional Continental European model of accounting and the Anglo-American model of accounting.