Finite sample accuracy and choice of sampling frequency in integrated volatility estimation

We consider the properties of three estimation methods for integrated volatility, i.e. realized volatility, Fourier, and wavelet estimation, when a typical sample of high-frequency data is observed. We employ several different generating mechanisms for the instantaneous volatility process, e.g. Ornstein–Uhlenbeck, long memory, and jump processes. The possibility of market microstructure contamination is also entertained using models with bid-ask bounce and price discreteness, in which case alternative estimators with theoretical justification under market microstructure noise are also examined. The estimation methods are compared in a simulation study which reveals a general robustness towards persistence or jumps in the latent stochastic volatility process. However, bid-ask bounce effects render realized volatility and especially the wavelet estimator less useful in practice, whereas the Fourier method remains useful and is superior to the other two estimators in that case. More strikingly, even compared to bias correction methods for microstructure noise, the Fourier method is superior with respect to RMSE while having only slightly higher bias. A brief empirical illustration with high-frequency GE data is also included.     

Third wave development expertise

In this paper I offer a normative account of development expertise. Although extending expertise beyond the traditional development experts to include local stakeholders, this normative account aims to delimit legitimate forms of expertise. I label this normative view third wave development expertise. Third wave expertise is distinguished from both the technocratic and the social constructivist views of development expertise. In particular, I discuss the notions of contributory and interactional expertise. Contributory expertise denotes the extent to which a group of agents possesses (tacit, embodied, or explicit) knowledge which can make a significant contribution to development decision-making, while interactional expertise denotes the extent to which they are able to communicate this knowledge meaningfully. While local stakeholders may possess contributory expertise in matters of their own development, they may lack interactional expertise to communicate this knowledge. Resolving this issue, I argue, requires a mediator who can interact with and between external experts and local stakeholders.     

Tariffs as Signals of Uncompetitiveness

In this paper, a domestic and a foreign firm compete as Cournot duopolists in the domestic market. The foreign firm has incomplete information about the costs of the domestic firm, but the domestic government and the domestic firm are completely informed. It is shown that the domestic government can use its tariff to signal about the costs of the domestic firm. In the separating equilibrium, the domestic government signals the uncompetitiveness of the domestic firm by setting a lower tariff than is optimal under complete information.     

Board composition in small enterprises

This paper reports the results of three empirical studies of boards of directors in small enterprises in Norway. Most studies of boards of directors are concerned with the situation in large corporations. This article provides insights into board attributes and board functions in small firms. The Studies reported found that board composition is an important factor in describing and analyzing directorates. They also found that the composition of the board of directors is a function of company size and ownership structure, and that board composition varies with industry. The studies found differences in the board's strategy involvement between industries.     

A Meta-study Investigating the Sources of Protest Behaviour in Stated Preference Surveys

It is a well-known empirical finding that some percentage of respondents participating in Stated Preference surveys will not give responses that reflect their true preferences. One reason is protest behaviour. If the distribution of protest responses is not independent of respondent or survey characteristics, then simply expelling protesters from surveys can lead to sample selection bias. Furthermore, WTP estimates will not be comparable across surveys. This paper seeks to explore potential causes of protest behaviour through a meta-study based on full datasets from 38 different surveys. The objective of the study is to examine the effect of respondent specific variables as well as survey specific variables on protest behaviour. Our results suggest that some of the differences in WTP typically observed between different demographic groups, different elicitation formats and different question formats might actually be attributed to inherent differences in the propensity to protest. Our results indicate that the propensity for respondents to exhibit protest behaviour when asked a stated preference type valuation question depends on a number of specific factors, respondent specific as well as survey specific—knowledge which could be used in order to reduce protest behaviour.     

Board-management relations in small firms: The paradox of simultaneous independence and interdependence

The author introduces constructs based on neo-classical and socio-economic assumptions, and argues that board-management relations should be characterized by both independence and interdependence. Interdependence is especially important in small firms. The article presents a model of directorates from research about directorates based on agency theory assumptions. This model is supplemented with constructs from the theory of contractual relations. Whilst traditional literature tends to focus upon independence from an agency theory perspective, this article argues that it is necessary to use more than one dimension of attributes regarding the board-management relations in order to understand the board's contribution to company performance, and that trust and solidarity is especially important in small firms. Board-management relations described by simultaneous independence and interdependence are proposed to give the highest contribution to company performance. The theoretical propositions are exemplified and supported by results of a field survey of directorates in small firms.     

International interdependencies in fiscal stabilization policies

Trade links imply that business cycle fluctuations are transmitted among trade partners. To the extent that fiscal policy can mitigate business cycle fluctuations international interdependencies in stabilization policies arise. We analyse in a two country general equilibrium model the role of fiscal policy in mitigating risk or providing implicit insurance in the presence of capital market imperfections and adjustment failures (rigid wages). It is shown that there is a welfare case for an active stabilization policy, and that it is larger in the presence of adjustment failures (rigid wages). Non-cooperative policy decisions imply inefficiencies in fiscal stabilization policies, which in the case of flexible wages may imply too much stabilization, whereas stabilization is always insufficient in the case of rigid wages.     

Multivariate Lagrange Multiplier Tests for Fractional Integration

We introduce a multivariate Lagrange multiplier (LM) test forfractional integration. We derive and analyze the LM statisticand show that it is asymptotically noncentral chi-squared distributedunder local alternatives, and that, under Gaussianity, the LMtest is asymptotically efficient against local alternatives.It is shown that the regression variant in Breitung and Hassler(2002, Journal of Econometrics 110, 167–185) is not equivalentto the LM test in the multivariate case, although it is in theunivariate case. A generalization of the LM test that explicitlyallows for different integration orders for each variable isalso introduced. The finite sample properties of the LM testare evaluated by Monte Carlo experiments which demonstrate thatit is superior to the Breitung and Hassler (2002) test. An applicationto multivariate time series of real interest rates for six countriesis offered, demonstrating that more clear-cut evidence can bedrawn from multivariate tests compared to conducting severalunivariate tests.