Asymmetric information,libertarianism, and fraud

Abstract

This paper argues (a) that while a no-fraud legal requirement does not follow from libertarian first principles, it is not only permitted – but also mandated – by them under certain conditions, and (b) that the claim that some fraudulent exchanges are morally invalid need not appeal to a theory of moral permissibility that is external to those principles.     

A new class of production functions and an argument against purely labor‐augmenting technical change

This paper derives the macro‐level production function from idea‐based microfoundations. Labor‐augmenting and capital‐augmenting developments are assumed to be Pareto‐distributed and mutually dependent. Using the Clayton copula family to capture this dependence, a new “Clayton–Pareto” class of production functions is derived that nests both the Cobb–Douglas and the constant elasticity of substitution. In the most general case, technical change is not purely labor‐augmenting over the long run, but it augments both capital and labor. Under certain parametrizations, the derived elasticity of substitution between capital and labor exceeds unity and, therefore, gives rise to long‐run endogenous growth.     

Beyond the Linearity Critique: The Knife-edge Assumption of Steady-state Growth

The “linearity critique” of endogenous growth models is presented in a general context of an arbitrary growth model and reassessed. It is argued that presence of linearities is not a valid criterion for rejecting growth models. Existence of exponential/geometrical steady-state growth (i.e. of a balanced growth path with strictly positive growth rates) necessarily requires some knife-edge condition which is not satisfied by typical parameter values. Hence, balanced growth paths are fragile and sensitive to smallest disturbances in parameter values. Adding higher order differential/difference equations to a model does not change the knife-edge character of steady-state growth.     

Real Exchange Rate Forecasting and PPP: This Time the Random Walk Loses

This paper brings four new insights into the Purchasing Power Parity (PPP) debate. First, we show that a half-life PPP (HL) model is able to forecast real exchange rates better than the random walk (RW) model at both short and long-term horizons. Second, we find that this result holds if the speed of adjustment to the sample mean is calibrated at reasonable values rather than estimated. Third, we find that it is preferable to calibrate, rather than to elicit as a prior, the parameter determining the speed of adjustment to PPP. Fourth, for most currencies in our sample, the HL model outperforms the RW also in terms of nominal exchange rate forecasting.     

Enriching the Tourist and Host Intercultural Experience by Reconceptualising Communication

The aim of this paper is to reconceptualise intercultural communication as it is conventionally understood in the field of tourism studies. Tourism literature identifies many problems related to intercultural communication between tourists and hosts from different cultural backgrounds. Some of these 'problems' occur only because tourism researchers assume that the appropriate goal for communication is 'communing', that is, finding common ground or understanding. This philosophical paper suggests that if one reconceptualises communication without the communing, using the philosophy of Martin Heidegger and Jean-Luc Nancy, the 'problems' in intercultural communication disappear and communication becomes a source of enrichment for both tourists and hosts. This paper suggests that the basis of intercultural communication in tourism should be the acknowledgement of cultural differences between international tourists and local hosts, and the goal should be the 'spacing' of culturally different individuals rather than the 'communing' of 'idle talkers'. Treating intercultural communication in this way creates an opportunity for both sides to appreciate and value cultural difference. Experiencing cultural difference is one of the most fundamental motivators for travel and for opening host communities to international tourists. Reconceptualising intercultural communication by adopting Heidegger's and Nancy's philosophies promises not only to enrich the tourism experience but also to transform researchers' approaches to tourism education and training, and to tourism marketing and management.     

NegoManage: A System for Supporting Bilateral Negotiations

In this paper we present the NegoManage system, which aims at supporting the bilateral negotiation during all negotiation phases. The support includes the problem structure identification, the analysis of individual preferences of both parties, the messaging and offers exchange and the post-negotiation improvements of the agreement. The preference analysis is supported with a novel mechanism involving the specification of the classes of alternatives’ quality that represent particular levels of potential satisfaction from accepting this alternative as the negotiation solution. The consistency of preferences is also checked. The actual negotiation phase is performed in a typical way, namely the negotiators exchange multiple offers and messages. The novelty introduced in this phase is the mechanism for profiling the negotiators based on the classification of exchanged messages. The post-negotiation optimization phase employs the concept of a bargaining solution for improving the solution obtained in the previous negotiation phase. We present the way the mechanisms proposed work using simple numerical examples.     

Estimating time-varying parameters in brand choice models: A semiparametric approach

Nowadays, brand choice models are standard tools in quantitative marketing. In most applications, parameters representing brand intercepts and covariate effects are assumed to be constant over time. However, marketing theories, as well as the experience of marketing practitioners, suggest the existence of trends or short-term variations in particular parameters. Hence, having constant parameters over time is a highly restrictive assumption, which is not necessarily justified in a marketing context and may lead to biased inferences and misleading managerial insights.In this paper, we develop flexible, heterogeneous multinomial logit models based on penalized splines to estimate time-varying parameters. The estimation procedure is fully data-driven, determining the flexible function estimates and the corresponding degree of smoothness in a unified approach. The model flexibly accounts for parameter dynamics without any prior knowledge needed by the analyst or decision maker. Thus, we position our approach as an exploratory tool that can uncover interesting and managerially relevant parameter paths from the data without imposing assumptions on their shape and smoothness.Our approach further allows for heterogeneity in all parameters by additively decomposing parameter variation into time variation (at the population level) and cross-sectional heterogeneity (at the individual household level). It comprises models without time-varying parameters or heterogeneity, as well as random walk parameter evolutions used in recent state space models, as special cases. The results of our extensive model comparison suggest that models considering parameter dynamics and household heterogeneity outperform less complex models regarding fit and predictive validity. Although models with random walk dynamics for brand intercepts and covariate effects perform well, the proposed semiparametric approach still provides a higher predictive validity for two of the three data sets analyzed.For joint estimation of all regression coefficients and hyperparameters, we employ the publicly available software BayesX, making the proposed approach directly applicable.     

Bank Capital and Liquidity Creation: Granger-Causality Evidence

We examine the relation between capital and liquidity creation. This issue is interesting because of the potential impact on liquidity creation from tighter capital requirements such as those in Basel III. We perform Granger-causality tests in a dynamic GMM panel estimator framework on an exhaustive data set of Czech banks, which mainly includes small banks from 2000 to 2010. We observe a strong expansion in liquidity creation until the financial crisis that was mainly driven by large banks. We show that capital negatively Granger-causes liquidity creation in this industry, where majority of banks are small. But we also observe that liquidity creation Granger-causes a reduction in capital. These findings support the view that Basel III can reduce liquidity creation, but also that greater liquidity creation can reduce banks’ solvency. Thus, we show that this reverse causality generates a trade-off between the benefits of financial stability induced by stronger capital requirements and the benefits of increased liquidity creation.