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We consider the taxation of exchanges among a set of agents where each agent owns one object. Agents may have different valuations for the objects and they need to pay taxes for exchanges. Using basic properties, we show that if pairwise (or some) exchanges of objects are allowed, then all exchanges (in any possible manner) must be feasible. Furthermore, whenever any agent exchanges his object, he
A time bank is a group of individuals and/or organizations in a local community that set up a common platform to trade services among themselves. There are several well-known problems associated with this type of banking, e.g., high overhead costs for record keeping and difficulties to identify feasible trades. This paper demonstrates that these problems can be solved by organizing time banks as a
It is widely believed that Friedrich von Hayek’s first encounter with Gunnar Myrdal involved the latter’s last-minute contribution, as a replacement for Erik Lindahl, to a Sammelband edited by the former in 1933, and that Hayek was lukewarm towards Myrdal and his ideas from the very beginning. Correspondence between the two shows that, in fact Myrdal was among Hayek’s original invitees,and that th
We develop a framework for categorization in games, applicable both to multistagegames of complete information and static games of incomplete information.Players use categories to form coarse beliefs about their opponents’behavior. Players best-respond given these beliefs, as in analogy-based expectationsequilibria. Categories are related to strategies via the requirementsthat categories contain a
This paper examines the causal effect of public discourse in one or both sides of the market on overall market socially responsible behavior. In a laboratory setting, we vary whether firms and/or consumers participate in a public discussion before trading begins. When both sides take part, the share of socially responsible trades increases slightly; however, when only one side participates, market
Several recent models of choice build on the idea that decision makers are more likely to choose an option if its attributes stand out compared to the attributes of the available alternatives. One example is the model of focusing by Köszegi and Szeidl (2013) where decision makers focus disproportionally on the attributes in which the available options differ more, implying that some attributes wil
We conduct a contest experiment where participants can invest in increasing both the mean and the spread of an uncertain performance variable. Subjects are treated with different prize schemes and in accordance with theory we observe substantial investments in spread. We find that both types of investments can be controlled with a three level prize scheme. However, the control is imperfect and beh
West Greenlandic Eskimo vowel spectra were investigated in carefully pronounced words and in continuous speech, and spectral differences were observed between the two situations. Spectra were compared in two consonantal environments - pharyngeal (uvular) and non-pharyngeal. In order to reconstruct vowel articulations, spectra were referred to nomograms from the three-parameter model of vowel artri
A certain formalization of Analogical Morphology is shown to be undecidable by reduction of Post's Correspondence Problem.
Permutational Grammar, PG, is a grammar inspired by the Free Word Order grammar, FOG, presented in Vladimir Pericliev & Alexander Grigorov 1992. Some languages, notably Latin, are said to have free word order, see e.g. Siewierska 1988. The name Permutational Grammar is derived from the use of permutations in order to generate order variation. The general problem to be solved by FOG and PG is t
Universitetsadjunkt Kontaktinformation E-post: andreas [dot] mattsson [at] iko [dot] lu [dot] se Telefon: +46 46 222 45 33 Mobil: +46 72 726 00 08Organisation Institutionen för kommunikation WebbplatsAndreas Mattssons profil i Lunds universitets forskningsportalPersonlig webbplats:http://www.andreasmattsson.netAndra roller Programkoordinator Institutionen för kommunikationAndreas Mattsson är unive
https://www.journalistik.lu.se/andreas-mattsson - 2026-10-13
AbstractThe purpose of this study was to document historical trends and socioeconomic inequalities in ill health outcomes related to alcohol consumption, narcotics use and tobacco smoking over the seventeen years prior to the implementation of the Swedish government’s first strategy for alcohol, narcotics, doping and tobacco (ANDT) in 2011. We also sought to explain the changes over time in terms The purpose of this study was to document historical trends and socioeconomic inequalities in ill health outcomes related to alcohol consumption, narcotics use and tobacco smoking over the seventeen years prior to the implementation of the Swedish government’s first strategy for alcohol, narcotics, doping and tobacco (ANDT) in 2011. We also sought to explain the changes over time in terms of chang
Titel presentation Plats och datum (2019-01-01) Hur påverkas penningpolitiken av klimatförändringarna? SACO Makro 2024 – Ekonomiska beslut i en klimatkris Anna Breman, PhD Förste vice riksbankschef Climatic and non-climatic risks will increasingly interact, creating compound and cascading risks that are more complex and difficult to manage (high confidence). (IPCC 2023, p-15) Omställningsrisker Kl
Professor Kontaktinformation E-post: anna [dot] lundberg [at] soclaw [dot] lu [dot] se Telefon: +46 46 222 87 28 Mobil: +46 70 946 62 30Organisation Rättssociologiska institutionen Hämtställe: 31 WebbplatsAnna Lundbergs profil i Lunds universitets forskningsportalAndra roller Profilområdesmedlem LU profilområde: Mänskliga rättigheterForskningsområdenKollektiv rättsmobiliseringLokalt solidaritetsar
https://www.soclaw.lu.se/anna-lundberg - 2026-10-13
What determines inequality and mobility of wealth? This paper quantifies in closed form both the bottom and the top (Pareto) tail of the distribution for a rich continuous-time model. The distribution is especially shaped by bequest motives, demographics, and the asset portfolio composition under idiosyncratic wealth risk. Factors that increase inequality also reduce mobility. The model - enriched
We study learning in a decentralized pairwise adverse selection economy, where buyers have access to the quality of traded goods but not to the quality of non- traded goods. Buyers categorize ask prices in order to predict quality as a function of ask price. The categorization is endogenously determined so that outcomes that are observed more often are categorized more finely, and within each cate
Since the turn of the century, agriculture in sub-Saharan Africa has been undergoing rapid transformation. Ghana is experiencing an agrarian revolution with increasing farmland sizes, increased mechanisation of production and external input usage, and high levels of commercialisation. In this paper we show the growth of farm sizes, the major drivers of increasing farm sizes, and emerging relations
Coordination games have multiple equilibria under complete information. However, recent theoretical advances show that if players are uncertain but can acquire information about a payoff-relevant state of the world, the number of equilibria depends on whether they can implement strategies (stochastic choice rules) discontinuous in the state. We experimentally test these results in a two-player inv
We run an online experiment with finance professionals and subjects from the general population (clients) to examine drivers and implications of clients' delegation decisions. We find that clients favor delegation to investment algorithms, followed by delegation to finance professionals with aligned incentives and lastly to those with fixed incentives. We also show that trust in investment algorit
