Design principles for long‐lived Internet agents

Prior research on intelligent Internet agents has failed to address the needs of long‐lived data‐collecting agents, focusing instead on short‐lived transaction agents. Transaction agents typically run for a few seconds and retrieve information for a single transaction. With the staggering growth of electronic commerce, researchers and practitioners will want to design long‐lived data‐collecting agents that intelligently search for, retrieve, interpret, categorize, and store vast amounts of related information each time that they run. Such agents can run over the course of days rather than seconds and can be used by practitioners for decision support applications or by researchers as part of an empirical research methodology. This paper proposes a framework for agent sophistication, and emphasizes a number of design concepts for long‐lived Internet agents, including intelligence, validation, concurrency, recovery, monitoring, and interactivity. These concepts are used in the development of an illustrative tool called Electronic Data Retrieval LexicaL Agent (eDRILL), an object‐oriented data‐collecting agent. eDRILL is designed using the Unified Modeling Language (UML) and is written in Java. It gathers research data from an online auction. © 2000 John Wiley & Sons, Ltd.     

Exploring the differences in performance measurement between research and development: evidence from a multiple case study

Researchers and practitioners have recently paid great attention to research and development (R&D) performance measurement, although it is acknowledged to be a very challenging task because of R&D intrinsic uncertainty and complexity levels. In this paper, the problem of designing a performance measurement system (PMS) for R&D activities is addressed; specifically, we investigate if and how the design of the PMS is influenced by the type of activity it is applied to, namely Basic and Applied Research or new product development (NPD). We first develop a theoretical framework that comprises the main constitutive elements of a PMS for R&D. Then the framework is used for supporting a multiple case study analysis involving eight Italian technology-intensive firms. The research results show that the criteria for designing the constitutive elements of the PMS are radically different in Basic and Applied Research and NPD. The reasons behind the observed dissimilarities in the design criteria are widely discussed in the paper, as well as their implications for R&D managers.     

A learning methodology using Matlab/Simulink for undergraduate electrical engineering courses attending to learner satisfaction outcomes

Learner-centred approaches follow the prevailing tendency in modern University reforms which are primarily concerned about “how people learn”. The methodologies can be learner-centred in the sense of placing the student as the main actor of the teaching–learning process by increasing his interactivity and participation, but also considering what is relevant for the student by measuring the learner satisfaction. In order to promote both aspects, this paper proposes a synchronous software-based active methodology that makes use of the simulations to show a virtual scenario to the students and challenge them to predict and discuss the evolution of the scenario. The proposed methodology improves the visual interface, promotes discussion both among students and with the teacher in a brainstorming stage and shows real-world examples. This software-based methodology has been implemented into an Electric Machinery course at the University of Seville (Spain), and the evaluation has been carried out considering both the affective and cognitive domains. Principal components analysis proves to be useful to highlight the dimensions with a higher influence on learner satisfaction and the affective and cognitive results confirm the successful implementation of the proposal.     

Does multimarket contact facilitate tacit collusion? Inference on conduct parameters in the airline industry

We provide empirical evidence that multimarket contact facilitates tacit collusion among airlines using a flexible model of oligopolistic behavior, where conduct parameters are modelled as functions of multimarket contact. We find (i) carriers with little multimarket contact do not cooperate in setting fares, whereas carriers serving many markets simultaneously sustain almost perfect coordination; (ii) cross‐price elasticities play a crucial role in determining the impact of multimarket contact on equilibrium fares; (iii) marginal changes in multimarket contact matter only at low or moderate levels of contact; (iv) assuming firms behave as Bertrand‐Nash competitors leads to biased estimates of marginal costs.     

How limiting deceptive practices harms consumers

There are two competing sellers of an experience good, one offers high quality, one low. The low‐quality seller can engage in deceptive advertising, potentially fooling a buyer into thinking the product is better than it is. Although deceptive advertising might seem to harm the buyer, we show that he could be better off when the low‐quality seller can engage in deceptive advertising than not. We characterize the optimal deterrence rule that a regulatory agency seeking to punish deceptive practices should adopt. We show that greater protection against deceptive practices does not necessarily improve the buyer welfare.     

Putable common stock

The underpricing of initial public offerings is a well-documented phenomenon in the financial literature. The purpose of this paper is to show how this empirical regularity could be solved by an appropriate choice of financing instruments, namely, by an intelligent mix of common stocks and put options. The latter additional instrument, modeled in this paper as a lump sum paid by insiders of the firm to outsiders, helps alleviate the asymmetry of information existing between insiders and outsiders of the corporation, allowing good firms to sell the package they offer at the full information value.     

The European monetary system: Crisis and future

This paper examines the immediate and the fundamental causes of the crsis that hit the European Monetary System in September 1992 and August 1993 and the obstacles that European countries face in trying to achieve their ultimate goal of full monetary union, including a single currency and a union-wide central bank by the end of this decade. The conclusion that follows from the paper is that achieving full monetary union in Europe by the end of this decade is certainly possible but not certain. A major recession or other shock affecting asymmetrically more than one large member nation could derail or at least delay the process of monetary union. Although major benefits are expected to flow from monetary union in Europe, even more important are the political benefits that such a union would provide to its members.     

Stature decline and recovery in a food-rich export economy: Argentina 1900-1934

Using height data for recruits of a principal regiment at Buenos Aires, the paper revises the question of welfare in Argentina during the period 1900-1934. The period of rapid export-led growth (1900-1913) showed an absolute deterioration of “net nutrition.” On the other hand, the inter-war period (1918-1939), generally characterized as a period of economic “delay” or “retardation,” presented a steady improvement in nutrition and health conditions. Two powerful external shocks, World War I and the Great Depression, had a minimal impact on the biological welfare of Argentine recruits. Economic growth generated important regional and social inequalities.     

Data editing and quality of daily diaries in the Italian Time use survey

In the Italian Time use survey, carried out by Istat (Italian National Statistical Institute) in 2002–2003, the coding process translates the sentences reported by the respondents into codes, but association text-code is not a one to one easy linkage, because the respondents describe the activities performed using the common language. So, a process of data editing is requested in order to improve data quality. The possibility to use sentences (recorded in the data entry) has definitely improved the data editing process. The main questions to analyse concern:

The nexus between corruption and academic freedom: An international investigation of the underlying linkages

Studying a relatively under-researched aspect in economics, this paper examines the nexus between corruption and academic freedom. Our main hypothesis is that greater corruption undermines academic freedom and we test this hypothesis using data for 104 nations from 2012 to 2018. Our results support the main hypothesis, and this finding also generally holds across alternative aspects of academic freedom. Another contribution of this work lies in dissecting the direct and indirect (through corruption) effects of various drivers of academic freedom. Finally, additional insights are gained by considering different dimensions of academic freedom and how they are impacted by corruption.