This research investigated whether earnings management of listed companies, have increased or decreased since the implementation of King II in 2003. This study assessed the extent of earnings management for certain sectors and for large and mid cap companies. The discretionary component of total accruals was used as proxy for earnings management – calculated by using the Modified Jones Model. The top-100 JSE-listed firms by market capitalisation were assessed, excluding the Financial, Mining and Resource Sectors. It was found that discretionary accruals has increased since 1996 and peaked in 2005 (see graph Figure 13). It was concluded with 89% certainty that discretionary accruals during “2003-2009” were higher than during “1996-2002”. Hence, the research suggests that accrual based earnings management is likely to have increased since 2003. However, the results were not statistically significant. Also, the cause of this increase could be due to many factors (not necessarily due to King II). Discretionary accruals were found to be higher for mid cap companies and for the retail sector. However, the analysis was not statistically significant. Discretionary accruals have fluctuated significantly over time and amongst companies. In order to identify which companies and sectors manage earnings the most, a more detailed micro-level investigation, using multiple detection models, is required. Copyright / Dissertation (MBA)--University of Pretoria, 2010. / Gordon Institute of Business Science (GIBS) / unrestricted

Includes bibliographical references / This paper investigates the impact of firm size and industry on the capital structure of listed South African firms. It uses data obtained from firms listed on the Johannesburg Stock Exchange and tests trade-off theory and pecking order theory for firms of various sizes, firms in different industries and also tests for differences between debt maturities. Multiple fixed effect models are used to firstly test for the main factors that impact capital structure and secondly to test which sources of capital are preferred to finance a change in assets. The analysis shows that firms of different sizes and firms that operate in different industries choose their capital structure in various ways. Larger firms are more highly geared debt more than small firms and smaller firms prefer to use internally generated funds. The two main capital structure theories, trade-off and pecking order, do not explain the difference in behaviour adequately. The paper also finds that similar factors impact both long-term and short-term debt.

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Consumers rely on sources of information to learn about products and make informed purchasing decisions. In fact, one of the first factors consumer consider when evaluating product information, is the source of that information. Yet despite the importance of the source, research on this topic is sporadic, leaving my unanswered questions. This dissertation advances our understanding of how three different sources of information influence consumers' perceptions and decision making. In the first study, we examine two sources (consumer originated and third party) to determine which one dominates in a persuasion episode. We find consumers overwhelmingly prefer consumer originated versus third party sources because they believe fellow consumers convey information that is diagnostic of future product experiences. In our second study, we show how a subtle firm-dominated characteristic, firm size, influences manufacturing assumptions and purchase behavior. We find consumers prefer small to large firms for unique products, because they assume small firms have a high degree of human intervention in the manufacturing process. / Doctor of Philosophy / Consumers rely on sources of information to learn about products and make informed purchasing decisions. In fact, one of the first factors consumer consider when evaluating product information, is the source of that information. Yet despite the importance of the source, research on this topic is sporadic, leaving my unanswered questions. This dissertation advances our understanding of how three different sources of information influence consumers' perceptions and decision making. In the first study, we examine two sources (consumer originated and third party) to determine which one dominates in a persuasion episode. We find consumers overwhelmingly prefer consumer originated versus third party sources because they believe fellow consumers convey information that is diagnostic of future product experiences. In our second study, we show how a subtle firm-dominated characteristic, firm size, influences manufacturing assumptions and purchase behavior. We find consumers prefer small to large firms for unique products, because they assume small firms have a high degree of human intervention in the manufacturing process.

The aim of this research is to examine the determinants of the level of corporate risk disclosure (CRD) in the interim reports of Swedish non-financial companies. A quantitative research approach is used, the sample data of which consist of 166 firms with 4,849 interim reports over a 10-year period. By utilizing the notion of risk and its definition, I have distinguished three categories of risk, namely risk as uncertainty, risk as threat and risk as opportunity. A systematic content analysis is conducted with the use of a software program, which is specifically designed for this purpose. The number of sentences that contain keywords related to the three risk categories is counted as the total CRD score, which is transformed to the disclosure index. I have examined the impact of firms’ characteristics and corporate governance mechanisms on the level of CRD based on agency theory. The ordinary least squares regression method with  control for fixed year effects is used to analyse the data, which show that firm size and audit committee have a positive relationship with the level of corporate risk disclosure. The result demonstrates also that there is a negative relationship between family ownership and the level of CRD, and an insignificant relationship between leverage and the level of CRD.

This paper examines the relationship between national culture differences and five-day cumulative abnormal returns of acquirers around cross-border merger announcements. The sample consists of 1,200 cross-border deals by frequent acquirers from emerging countries for the period of January 1, 1985 to June 30, 2008. The main objective is to analyze the relation between the difference in Hofstede (1984)’s four cultural dimensions --- power distance, individualism, masculinity, and uncertainty avoidance and the merger performance. The results imply the compatibility of some cultural dimensions, individualism in particular, that result in gains in merger. The results also show that the cultural effects vary with the firm size. In addition, the evidence provides support for the hubris hypothesis by Roll (1986).

Em contabilidade, tamanho de empresa é comumente utilizado como proxy para caracterizar inúmeros conceitos teóricos. Muito se tem discutido sobre a validade e confiabilidade desta proxy devido a alta variância das medidas operacionais usadas para a mensuração de tamanho de empresa. Com o intuito de reduzir esta variância alguns procedimentos estatísticos são aplicados para ajustar os valores. Pesquisas internacionais evidenciam que a distribuição de probabilidade da variável tamanho de empresa segue uma lei de potência. Diante desse cenário esta pesquisa teve como objetivo investigar se é possível tratar e classificar as medidas operacionais para proxy de tamanho de empresas brasileiras, por meio de Leis de Potência. Foram utilizados dados do período de 1997 a 2006, relativos às medidas operacionais Receitas (REC), Ativo Total (AT), Patrimônio Líquido (PL) e de 1996 a 2004 para a medida Número de Empregados (NE), de bases diferentes, FIPECAFI, Economática® e IBGE. Observou-se a ocorrência da lei de potência, -m > P(v ) = c v , em toda a extensão da variável v = REC , com expoente m próximo de 1, como verificado em todas as pesquisas internacionais, enquanto que para as demais variáveis foi confirmada a lei de potência, apenas na cauda da distribuição. Na seqüência a formulação proposta, P(v> )*v , foi aplicada para a proxy em um estudo específico na área contábil. Observou-se que a ponderação de v pela probabilidade de ocorrência de valores superiores a v, utilizada como proxy, leva à significância estatística exigida nos modelos da área contábil. Os resultados obtidos são satisfatórios, pois, confirmam a natureza da lei de potência de P(v> ) para o cenário brasileiro e, com relação à proxy proposta, espera-se validá-la no cenário da pesquisa contábil, pois a mesma inclui informações sobre a natureza estatística de medidas operacionais para tamanho de empresa. / Firm size is frequently used, in accounting, as a proxy to characterize several theoretical concepts. It has been discussing a lot about the validity and reliability of this proxy due to the variance of the operational measures used for the firm size mensuration. With the intention of reducing this variance, statistical procedures are applied to adjust the values. International researches evidence that, statistically, the company size can be represented by power law distributions. The present research has the objective of investigate if it is possible to treat and classify the operational measures for proxy of Brazilian firm size as a power law. Using data from 1997 to 2006, relative to the measures of operational Incomes (REC), Total Assets (AT), Equity (PL) and from 1997 to 2004 for the measure Number of Employees (NE), of three different data bases, FIPECAFI, Economática® and IBGE. The power law, -m > P(v ) = c v , was verified for v = REC , with values of m equivalent to that obtained on international researches, while for the other variables, the power law was confirmed just in the tail of the distribution. In the sequence, the proposed formulation, P(v> )*v , was applied to a specific study in the accounting area. It was observed that this proxy alows for statistical significance required to validate researches into accounting area. The obtained results confirm the power law nature of P(v> ) for Brazilian firms and, related to the proxy suggested, the expectation is that it can be validate into the accounting research area, once it includes information on the statistical nature of operational measurements for firm size.

This dissertation aims to answer the main question of "How does regional ecology (few or many small innovative firms in a region) enhance or limit innovation?" Put differently, how vital is the mix of small and large firms for regional innovation performance? From the policy perspective, the results of this study shed some light for policy maker to assess the "knowledge searching" strategies of firms when choosing locations. The research design combines a unique survey of patent inventors in the United States and archival data. Georgia Tech inventor survey data contains commercialization measures for patented inventions and information on firm characteristics. Using this archival data, data has been collected on regional innovation measures, regional-level attributes and project-level measures. The results indicate that the agglomeration of specialized firms is positively associated with regional innovation activities, as the Marshall-Arrow-Romer model proposed. In addition to traditional regional measures, small firm dominated ecology is a strong factor explaining regional commercialization activities, even though the role is not very significant when explaining the regional patenting activities. It is suggested that the organizational ecological perspective is complementary to understand information flow mechanisms in innovative regions. One mechanism of SME dominated ecologies is partially through the increase of skilled labor mobility. Furthermore, when the regional ecology moves towards being dominated by small firms, large firms benefit more from the presence of many innovative small firms than SMEs. By contrast, the concentration of innovative small firms does not add much value for SMEs. I suggest the focus of policies should be on understanding the heterogeneous ability of accessing localized knowledge resources between large and small firms. Deriving from the findings, policy implications and future research are discussed.

In this thesis we examined the export dynamics at the firm level. A two period model is proposed for the life of firms. The firms may have three different behaviors: staying out of markets, producing for the domestic market, and producing for both the domestic and the export markets. During two periods, firms may enter or exit the markets according to their expected) profits. All firms are profit maximizing such that they compare the maximum (expected) profits in the domestic and export markets. Firms are also heterogenous so that they have different levels of productivity. We examined changes in investment, market share and profits with respect to changes in the market and firm parameters. The profits and investments of the exporting and non-exporting firms are compared by both analytical and numerical methods.

The outsourcing of the business logistics activities have became a trend. The goals of my research want to understand that: (1) The outsourcing extent of the logistics activities. (2) The logistics outsourcing considered factors. (3) How the firm size affect the (1) and (2). (4) How the logistics network complexity affect the (1) and (2). The research¡¯s samples are the PC and peripheral equipment companies in Taiwan. The capital, the revenue, and the number of the employee measure the size of a firm. The logistics network complexity is measured by the number of the customers, the number of the suppliers, the number of the countries that customers in, and the number of the countries that the suppliers in. The result shows that the companies think the cost saving factors is most important when they decide to outsource the activity. The great extent of the traffic transportation, salvage and scrap disposal and return goods handling are outsourced. The companies whose sizes are small put great emphasis on the ¡°logistics information systems¡± factors. The big companies have a tendency to outsource the physical moved activities like traffic transportation, salvage and scrap disposal. The small companies are apt to outsource the process handling activities. In the logistics network complexity, the suppliers make greater difference in the outsourcing logistics activities than the customers. The numbers of the countries affect the logistics outsourcing considered factors.