How to measure mutual fund performance: economic versus statistical relevance

In the present paper a comprehensive assessment of existing mutual fund performance models is presented. Using a survivor‐bias free database of all US mutual funds, we explore the added value of introducing extra variables such as size, book‐to‐market, momentum and a bond index. In addition to that we evaluate the use of introducing time‐variation in betas and alpha. The search for the most suitable model to measure mutual fund performance will be addressed along two lines. First, we are interested in the statistical significance of adding more factors to the single factor model. Second, we focus on the economic importance of more elaborate model specifications. The added value of the present study lies both in the step‐wise process of identifying relevant factors, and the use of a rich US mutual fund database that was recently released by the Center for Research in Security Prices.     

Managing uncertainty in on-demand air travel

Fractional management companies (FMCs) that provide on-demand air travel services experience frequent changes in aircraft availability and flight requests. We propose scheduling heuristics which are both cost-effective and persistent (i.e., close to the original schedule) to address the uncertainty. The heuristics include pro-actively enforcing idleness of aircraft in creating the original schedule, strategically repositioning aircraft to serve yet-unknown demand and dense scheduling. Computational experiments are conducted in a simulator that mimics FMCs’ daily operations. Simulation results quantify the value of each heuristic, which can be easily incorporated into existing computational methods used in FMCs for static scheduling problems.     

Geographies of wealth: real estate and personal property ownership in England and Wales, 1870–1902

This article explores the composition and geographies of individual wealth holding in England and Wales in the late nineteenth century. It draws on various forms of death duty records to determine the individual ownership of wealth including both personal property and real estate. By combining information on these different kinds of property, it is possible to explore how different strata of wealth holders accumulated specific forms of wealth at the time of their death. The article then examines how the composition of that wealth varied according to the wealth holder's location in the urban hierarchy and distance from London. It points out important geographical differences in both the scale and nature of wealth holding and raises questions about the implications of these findings.     

Creation of models for calculation of coefficients of terrain passability

Quality & Quantity - The content of this article is a paper about a complex mathematical model of terrain passability which respects geographical and meteorological conditions in terrain and...     

An algorithm for resource allocation with constraints in an input-output framework

In a large corporation or at the national level, planning involves a large number of inter-related activities competing for the same resources. In spite of its rather restrictive assumptions, Leontief's Input-Output model is still one of the best tool for the study of physical and financial flows between activities or economic sectors. A simple algorithm to find its solution when the available resources are limited is presented in this paper. The properties of that algorithm that was incorporated in an inter-industrial model built in Venezuela are proven and are followed by examples of application.r>

Riassunto In grandi imprese o in sistemi economici nazionali la pianificazione riguarda un numero elevato di attività interrelate che fanno uso delle stesse risorse. Nonostante le ipotesi di base piuttosto restrittive, il modelloinput-output di Leontief è ancora uno degli strumenti più efficaci per lo studio dei flussi fisici e finanziari tra attività o settori economici.In questo lavoro viene presentato un semplice algoritmo per individuare la soluzione d'un problema di pianificazione quando sono limitati gli ammontari delle risorse. Sono dimonstrate alcune proprietà di questo algoritmo, che fu impiegato su un modello di relazioni interindustriali costruito in Venezuela e sono fornite alcune applicazioni esemplificatrici.

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Versione definitiva pervenuta il 14-2-1983     

What has New Zealand gained from The FTA with China?: Two counterfactual analyses†

We investigate the effects of the 2008 New Zealand (NZ)–China free trade agreement (FTA) on exports from NZ to China, and real GDP per capita in NZ using the synthetic control method to estimate the counterfactuals. NZ exports to China were more than 200% higher in 2014 than what they would have had the FTA never been signed. NZ's food and live animals exports to China were more than 180% higher in 2014 than the counterfactual. Our counterfactuals indicate a small but negative effect of the FTA on NZ's real GDP per capita between 2009 and 2012.     

Business Cycles Around the Globe: Some Key Facts

We document massive heterogeneity in basic cyclical patterns within groups of developed and emerging market economies. While we detect marked differences between developed and emerging countries as well, the distributions of key business cycle statistics tend to overlap across different country groups.     

Why should Austrian economists be pluralists?

Peter Boettke (ref="#CR8">2007) argues that economists need not act pluralistically in order for pluralism to thrive in the marketplace of economic ideas. From a market process perspective, Boettke sees intellectual diversity and openness as catallactic outputs, not inputs—emergent by-products of academic specialization and trade. To expect individual scholars to behave in a pluralistic manner is unnecessary and “completely inappropriate” since it detracts from their central task: “to commit themselves to an approach and pursue it doggedly, even in the face of great doubt and resistance by one’s peers” (ref="#CR8">Boettke 2007). This paper proposes a Smithian revision of Boettke’s position. The author argues that scholarly pluralism is best understood as a constitutional rule of academic life—a virtue ethic that promotes learning and intellectual freedom by mitigating tyranny and autarky in the republic of science. Drawing from the writings of Adam Smith, Friedrich Hayek, Deirdre McCloskey, Bruce Caldwell, James Buchanan, Don Lavoie, and Boettke himself, the author argues that scholarly pluralism has been, and continues to be, a necessary condition for the flourishing of Austrian economists as free, responsible, efficacious thinkers.