L'aportació de Tomàs Cerdà en la introducció del càlcul diferencial i integral a l'Espanya del segle XVIII

El desenvolupament del càlcul diferencial i integral com a disciplina científica a Europa durant el segle XVIII no és un tema nou. Però s’ha acostumat a enfocar la visió d’aquesta formació molt sovint des del “centre” i a partir de les grans figures com Isaac Newton o Gottfried Wilhelm Leibniz. En el present treball el protagonista potser, per a molts, no és una figura de primera línia; Tomàs Cerdà, és un ensenyant a Barcelona i a Madrid durant la segona meitat del segle XVIII, que “tradueix” al castellà autors anglesos, però que amb la seva pràctica està realment introduint el nou càlcul a Espanya i donant, de fet, una orientació d’aquesta nova disciplina als seus deixebles. El com i per què Cerdà decideix quin serà el seu guia en la introducció del càlcul diferencial i integral i quines seran les seves pròpies aportacions en aquesta labor seran els temes centrals del nostre treball. La nostra tasca ha anat, així doncs, a entendre millor, el procés de divulgació del coneixement científic, veient-lo en tot moment com formant part activa del mateix procés de construcció d’aquest coneixement.

Uncertainty, electoral Incentives and political myopia

In this paper, we study the determinants of political myopia in a rational model of electoral accountability where the key elements are informational frictions and uncertainty. We build a framework where political ability is ex-ante unknown and policy choices are not perfectly observable. On the one hand, elections improve accountability and allow to keep well-performing incumbents. On the other, politicians invest too little in costly policies with future returns in an attempt to signal high ability and increase their reelection probability. Contrary to the conventional wisdom, uncertainty reduces political myopia and may, under some conditions, increase social welfare. We use the model to study how political rewards can be set so as to maximise social welfare and the desirability of imposing a one-term limit to governments. The predictions of our theory are consistent with a number of stylised facts and with a new empirical observation documented in this paper: aggregate uncertainty, measured by economic volatility, is associated to better ...scal discipline in a panel of 20 OECD countries.

Intervención en una clase de conducta disruptiva : entrenamiento en habilidades sociales

La intervención se realizó en una clase de comportamiento disruptivo de 1º de la ESO. Después de una sencilla evaluación, se decidieron unas normas básicas para este grupo de alumnos y se inició un entrenamiento en habilidades sociales. Esta intervención, estuvo encaminada a ayudar a solucionar estos problemas de disrupción en el contexto de las clases, así como a dotar al alumnado de habilidades sociales, con dos fines esenciales, la mejora de la convivencia en clase favoreciendo las condiciones necesarias para el aprendizaje y la internalización de estrategias personales que le ayuden a desarrollarse como persona. Los resultados fueron muy positivos, el ambiente de clase mejoró sensiblemente y el alumnado se comunicaba mejor al final del entrenamiento.

In memoriam: Dr. Francesc Abel i Fabre, SJ.

The Journal of Medicine and Philosophy has been impoverished by the loss of Dr. Francesc Abel Fabre, S.J. (1933–2011), one of the founders of bioethics and a long-time member of the Editorial Advisory Board. 2011 brought the death of Dr. Francesc Abel Fabre, S.J., at the age of 78. He was the pioneer of European bioethics. Dr. Abel learned the discipline at Georgetown University, working side by side with the founder and first director of the Kennedy Institute of Ethics, André Hellegers, as bioethics itself was coming into existence. He went from this experience to establish the Institute Borja of Bioethics in Catalonia in 1976, the first center of bioethics in Spain and in Europe. Through his scholarship and teaching, he established an influential dialogue in bioethics, as well as ethics committees in hospitals and in research centers. In 1986 he joined in founding the European Association of Centres of Medical Ethics, an organization in which he was involved and participated for the last 25 years. He contributed crucially to bioethics across the world, especially through the International Study Group on Bioethics (1980–1994). He was widely recognized as an outstanding bioethics expert in Latin America.

Corruption in representative democracy

A parliament with n members, distributed among two parties, decides whether to accept or reject a certain proposal. Each member of the parliament votes in favour or against. If there are at least t members in favour, the proposal is accepted; otherwise it is rejected. A non-member of the parliament, the briber, is interested in having the proposal accepted. To this end, he is willing to bribe members to induce them to vote in favour. It is compared a parliament with party discipline, where members vote according to the party line, and a parliament without party discipline, where members vote according to their own opinion. The paper determines, for given values of n and t , the average number of members that the briber has to bribe in each case (with the average taken with respect to all the possible allocations of members between parties and their votes, and also with respect to those allocations inducing the briber to bribe). The results show that a parliament with parties with party discipline is more costly for the briber to be bribed.

Competències i factors clau per a l’èxit educatiu des de la perspectiva dels estudiants universitaris fills/es dels immigrants

L’estudi realitzat ha abordat quines són les competències i els factors clau que estudiants universitaris d’origen immigrant consideren que han estat claus per arribar a la universitat, assolint així l’èxit educatiu. S’han escollit estudiants que haguessin fet l’escolaritat obligatòria total o parcialment a Catalunya.Per dur a terme la recerca s’ha treballat amb relats de vida (un total de 13 escrits) i narracions audiovisuals (amb un total de 4 produccions), essent finalment 17 les evidències vàlides. Finalment, s’ha elaborat, administrat i processat un qüestionari d’opinió que s’ha remès a 2472 estudiants de la Universitat de Barcelona, dels quals hem aconseguit 128 respostes considerades vàlides. Els relats s’han analitzat amb un procediment inductiu, procedint a una lectura exhaustiva de les paraules dels participants i anant identificant quines són les competències i els factors clau que ells consideraven que els havien ajudat a arribar a la universitat o que, tot i no ser ells conscients, nosaltres identificàvem com a tals. Pel que fa a les narracions audiovisuals, es va dur a terme una anàlisi tant del contingut, tenint com a referència els resultats obtinguts als relats escrits, com d’aspectes més tècnics, centrats en la imatge i el so. Per acabar, els qüestionaris s’han analitzat a partir de processos bàsics d’estadística descriptiva. Pel que fa als resultats obtinguts, respecte a l’eix de competències, la més destacada és la d’autonomia i iniciativa personals, lligada a la responsabilitat i autoexigència. Respecte a l’eix d’èxit educatiu, destaca el paper del professorat, tant pel suport que els ofereixen com per les expectatives que dipositen en ells. I, per acabar, respecte a l’eix d’inclusió social, els aspectes que l’afavoreixen es centren sobretot en el recolzament de la família, en l’entorn més immediat i en el fet d’entendre la possibilitat de viure amb altres cultures com un enriquiment.

Book vs. Fair Value Accounting in Banking, and Intertemporal Smoothing

The aim of this paper is to examine the pros and cons of book and fair value accounting from the perspective of the theory of banking. We consider the implications of the two accounting methods in an overlapping generations environment. As observed by Allen and Gale(1997), in an overlapping generation model, banks have a role as intergenerational connectors as they allow for intertemporal smoothing. Our main result is that when dividends depend on profits, book value ex ante dominates fair value, as it provides better intertemporal smoothing. This is in contrast with the standard view that states that, fair value yields a better allocation as it reflects the real opportunity cost of assets. Banking regulation play an important role by providing the right incentives for banks to smooth intertemporal consumption whereas market discipline improves intratemporal efficiency.

Institutions, Public Debt and Foreign Finance

We study the role of domestic financial institutions in sustaining capital flows to the private and public sector of a country whose government can default on its debt. As in recent public debt crises, in our model public defaults weaken banks' balance sheets, disrupting domestic financial markets. This effect leads to a novel complementarity between private capital inflows and public borrowing, where the former sustain the latter by boosting the government's cost of default. Our key message is that, by shaping the direction of private capital flows, financial institutions determine whether financial integration improves or reduces government discipline. We explore the implications of this complementarity for financial liberalization and debt-financed bailouts of banks. We present some evidence consistent with complementarity.

Some last thoughts on compositional data analysis

One of the disadvantages of old age is that there is more past than future: this,however, may be turned into an advantage if the wealth of experience and, hopefully,wisdom gained in the past can be reflected upon and throw some light on possiblefuture trends. To an extent, then, this talk is necessarily personal, certainly nostalgic,but also self critical and inquisitive about our understanding of the discipline ofstatistics. A number of almost philosophical themes will run through the talk: searchfor appropriate modelling in relation to the real problem envisaged, emphasis onsensible balances between simplicity and complexity, the relative roles of theory andpractice, the nature of communication of inferential ideas to the statistical layman, theinter-related roles of teaching, consultation and research. A list of keywords might be:identification of sample space and its mathematical structure, choices betweentransform and stay, the role of parametric modelling, the role of a sample spacemetric, the underused hypothesis lattice, the nature of compositional change,particularly in relation to the modelling of processes. While the main theme will berelevance to compositional data analysis we shall point to substantial implications forgeneral multivariate analysis arising from experience of the development ofcompositional data analysis…

Book vs. fair value accounting in banking and intertemporal smoothing

The aim of this paper is to examine the pros and cons of book and fair value accounting from the perspective of the theory of banking. We consider the implications of the two accounting methods in an overlapping generations environment. As observed by Allen and Gale(1997), in an overlapping generation model, banks have a role as intergenerational connectors as they allow for intertemporal smoothing. Our main result is that when dividends depend on profits, book value ex ante dominates fair value, as it provides better intertemporal smoothing. This is in contrast with the standard view that states that, fair value yields a better allocation as it reflects the real opportunity cost of assets. Banking regulation play an important role by providing the right incentives for banks to smooth intertemporal consumption whereas market discipline improves intratemporal efficiency.

Regulating financial conglomerates

We investigate the optimal regulation of financial conglomerates which combinea bank and a non-bank financial institution. The conglomerate s risk-taking incentivesdepend upon the level of market discipline it faces, which in turn isdetermined by the conglomerate s liability strucure. We examine optimal capitalrequirements for standalone institutions, for integrated financial conglomerates,and for financial conglomerates that are structured as holding companies.For a given risk profile, integrated conglomerates have a lower probability offailure than either their standalone or decentralised equivalent. However, whenrisk profiles are endogenously selected conglomeration may extend the reachof the deposit insurance safety net and hence provide incentives for increasedrisk-taking. As a result, integrated conglomerates may optimally attract highercapital requirements. In contrast, decentralised conglomerates are able to holdassets in the socially most efficient place. Their optimal capital requirementsencourage this. Hence, the practice of regulatory arbitrage , or of transferingassets from one balance sheet to another, is welfare-increasing. We discuss thepolicy implications of our finding in the context not only of the present debateon the regulation of financial conglomerates but also in the light of existingUS bank holding company regulation.

Optimal bail out policy, conditionality and constructive ambiguity

This paper addresses the issue of the optimal behaviour of the Lender of Last Resort (LOLR) in its microeconomic role regarding individual financial institutions in distress. It has been argued that the LOLR should not intervene at the microeconomic level and let any defaulting institution face the market discipline, as it will be confronted with the consequences of the risks it has taken. By considering a simple costbenefit analysis we show that this position may lack a sufficient foundation. We establish that, instead, uder reasonable assumptions, the optimal policy has to be conditional on the amount of uninsured debt issued by the defaulting bank. Yet in equilibrium, because the rescue policy is costly, the LOLR will not rescue all the banks that fulfill the uninsured debt requirement condition, but will follow a mixed strategy. This we interpret as the confirmation of the "creative ambiguity" principle, perfectly in line with the central bankers claim that it is efficient for them to have discretion in lending to individual institutions. Alternatively, in other cases, when the social cost of a bank's bankruptcy is too high, it is optimal for the LOLR to bail out the insititution, and this gives support to the "too big to fail" policy.

Geografia i experiència professional: entrevista a deu joves geògrafs i geògrafes

En aquest article es presenta el relat de les històries personals de deu joves geògrafs i geògrafes centrades en la seva formació acadèmica i en les respectives experiències i trajectòries en el món laboral. No pretén ser una mostra representativa de l’actual panorama professional al nostre país, sinó, tan sols, fer arribar al lector deu trajectòries individuals que tenen com a fil conductor l’intent d’assolir l’exercici professional i estable de la geografia

The evolution of recent research on Catalan literature through the production of PhD theses: a bibliometric and social network analysis

Introduction. This paper studies the situation of research on Catalan literature between 1976 and 2003 by carrying out a bibliometric and social network analysis of PhD theses defended in Spain. It has a dual aim: to present interesting results for the discipline and to demonstrate the methodological efficacy of scientometric tools in the humanities, a field in which they are often neglected due to the difficulty of gathering data. Method. The analysis was performed on 151 records obtained from the TESEO database of PhD theses. The quantitative estimates include the use of the UCINET and Pajek software packages. Authority control was performed on the records. Analysis. Descriptive statistics were used to describe the sample and the distribution of responses to each question. Sex differences on key questions were analysed using the Chi-squared test. Results. The value of the figures obtained is demonstrated. The information obtained on the topic and the periods studied in the theses, and on the actors involved (doctoral students, thesis supervisors and members of defence committees), provide important insights into the mechanisms of humanities disciplines. The main research tendencies of Catalan literature are identified. It is observed that the composition of members of the thesis defence committees follows Lotka's Law. Conclusions. Bibliometric analysis and social network analysis may be especially useful in the humanities and in other fields which are lacking in scientometric data in comparison with the experimental sciences.

Sistemes de gestió de continguts en la gestió del coneixement

Since the second half of the 1990s, knowledge management has taken shape and has been firmly consolidated as a new discipline within the realm of organisations. The principal objective of this work is to determine whether content management systems (CMS) can become the most appropriate technological standard for consolidating this field. The article describes and analyses the major functions (publishing and exploitation) of these new systems. It then examines the field of knowledge management ¿what are the different types of knowledge that we can find within an organisational context¿ and then identifies and analyses the operations critical to managing it appropriately. The article concludes by evaluating the extent to which technological solutions provided by CMS can assist in properly implementing these critical operations.