Towards a New Eastern Enlargement of the EU and Beyond

Intereconomics - It is not the first time in EU history that the enlargement perspective is confronted with the need for integration deepening.     

ADMISSIBILITY OF GENERIC MARKET MODELS OF FORWARD SWAP RATES

Our main goal is to re‐examine and extend certain results from the papers by Galluccio et al. and Pietersz and van Regenmortel. We establish several results providing alternate necessary and sufficient conditions for admissibility of a family of forward swaps, that is, the property that it is supported by a (positive) family of bonds associated with the underlying tenor structure. We also derive the generic expression for the joint dynamics of a family of forward swap rates under a single probability measure and we show that these dynamics are uniquely determined by a selection of volatility processes with respect to the set of driving martingales.     

Size matters: entrepreneurial entry and government

We explore the country-specific institutional characteristics likely to influence an individual’s decision to become an entrepreneur. We focus on the size of the government, on freedom from corruption and on “market freedom” defined as a cluster of variables related to protection of property rights and regulation. We test these relationships by combining country-level institutional indicators for 47 countries with working-age population survey data taken from the Global Entrepreneurship Monitor. Our results indicate that entrepreneurial entry is inversely related to the size of the government, and more weakly to the extent of corruption. A cluster of institutional indicators representing “market freedom” is only significant in some specifications. Freedom from corruption is significantly related to entrepreneurial entry, especially when the richest countries are removed from the sample, but unlike the size of government, the results on corruption are not confirmed by country-level fixed-effects models.     

Formalising Workflow: A CCS-inspired Characterisation of the YAWL Workflow Patterns

We present work concerning the formal specification of business processes. It is of substantial benefit to be able to pin down the meaning of business processes precisely. This is an end in itself, but we are also concerned to do so in order that we might prove properties about the business processes that are being specified. It is a notable characteristic of most languages for representing business processes that they lack a robust semantics, and a notable characteristic of most commercial Business Process Management products that they have no support for verification of business process models. We define a high-level meta-model, called Liesbet , for representing business processes. The ontological commitments for Liesbet are sourced from the YAWL workflow patterns, which have been defined from studies into the behavioural nature of business processes. A formal characterisation of Liesbet is provided using Milner’s Calculus of Communicating Systems (CCS). In this article, we omit some of the technical details of this characterisation and instead present the essential features by means of an abstract machine language, called LCCS. We also explain how we have facilitated the verification of certain properties of business processes specified in Liesbet , and discuss how Liesbet supports the YAWL workflow patterns. We include a simple three-part example of using Liesbet .     

THE EARLY EXERCISE PREMIUM REPRESENTATION OF FOREIGN MARKET AMERICAN OPTIONS1

The note deals with the pricing of American options related to foreign market equities. the form of the early exercise premium representation of the American option's price in a stochastic interest rate economy is established. Subsequently, the American fixed exchange rate foreign equity option and the American equity-linked foreign exchange option are studied in detail.     

African Perspectives on China–Africa: Modelling Popular Perceptions and their Economic and Political Determinants

China's recent political and economic inroads into Africa have generated much interest in the current literature, with scholars and policymakers endeavouring to assess the merits and risks implicit in this renewed engagement. Absent from the literature, however, are systematic analyses of African perceptions of these rapidly growing China–Africa links, and what determines these perceptions. This article fills this void by examining not only African attitudes towards China's African presence, but also investigating the considerations that inform these views. Using multi-level modelling techniques, this article estimates the effects of Chinese foreign direct investment (FDI), Sino-African trade and notions of democracy and human rights on African attitudes towards “China-in-Africa”. The results suggest that Africans' views of China are nearly equivalent to those that they hold vis-à-vis Western countries. The perceived impact of imports from China has a negative effect. However, this effect is counter-balanced by perceptions of China's impact on poverty alleviation—in line with its greater focus on economic, social and cultural, as opposed to civic and political human rights—in particular through FDI. Among those who value civic and political human rights, in contrast, attitudes towards China are less favourable. This finding is echoed with respect to democratic governance, though the effect is less stable. The results are derived from Afrobarometer data covering 20 African countries.     

ARE FINANCIAL AND SOCIAL EFFICIENCY MUTUALLY EXCLUSIVE? A CASE STUDY OF VIETNAMESE MICROFINANCE INSTITUTIONS

A major debate in microfinance focuses on the existence of a trade‐off between the financial sustainability of microfinance institutions (MFIs) and their outreach to poor clients. This paper adds to this debate by analyzing whether financial and social efficiency are mutually exclusive in a context of implicit subsidies by the state and international donors. We use data from a sample of 28 Vietnamese MFIs and apply Data Envelopment Analysis (DEA) to identify the existence of a trade‐off. Our analysis shows that for Vietnamese MFIs financial and social efficiency are not related. We interpret this as evidence for the fact that there is no support to believe that there is such a trade‐off. Subsidies, based on which most Vietnamese MFIs currently operate, helps them to show high financial efficiency, while at the same time being able to attain their social goals. Nevertheless, this model may not be sustainable in the long‐term.