The long-run relationship of gold and silver and the influence of bubbles and financial crises

This paper analyzes the long-run relationship between gold and silver prices. We closely follow Escribano and Granger (J Forecast 17:81–107, 1998) and extend their study. We use a longer sample period from 1970 to 2011 and study the role of bubbles and financial crises for the relationship between gold and silver prices. We find clear evidence for a co-integration relationship between gold and silver with gold prices driving the relationship. The analysis also indicates that the results are influenced by bubble-like episodes and financial crises.     

Cost-effectiveness of Access to Critical Cerebral Emergency Support Services (ACCESS): a neuro-emergent telemedicine consultation program

Aims: Access to Critical Cerebral Emergency Support Services (ACCESS) was developed as a low-cost solution to providing neuro-emergent consultations to rural hospitals in New Mexico that do not offer comprehensive stroke care. ACCESS is a two-way audio-visual program linking remote emergency department physicians and their patients to stroke specialists. ACCESS also has an education component in which hospitals receive training from stroke specialists on the triage and treatment of patients. This study assessed the clinical and economic outcomes of the ACCESS program in providing services to rural New Mexico from a healthcare payer perspective.

Methods: A decision tree model was constructed using findings from the ACCESS program and existing literature, the likelihood that a patient will receive a tissue plasminogen activator (tPA), cost of care, and resulting quality adjusted life years (QALYs). Data from the ACCESS program includes emergency room patients in rural New Mexico from May 2015 to August 2016. Outcomes and costs have been estimated for patients who were taken to a hospital providing neurological telecare and patients who were not.

Results: The use of ACCESS decreased neuro-emergent stroke patient transfers from rural hospitals to urban settings from 85% to 5% (no tPA) and 90% to 23% (tPA), while stroke specialist reading of patient CT/MRI imaging within 3?h of onset of stroke symptoms increased from 2% to 22%. Results indicate that use of ACCESS has the potential to save $4,241 ($3,952–$4,438) per patient and increase QALYs by 0.20 (0.14–0.22). This increase in QALYs equates to ～73 more days of life at full health. The cost savings and QALYs are expected to increase when moving from a 90-day model to a lifetime model.

Conclusion: The analysis demonstrates potential savings and improved quality-of-life associated with the use of ACCESS for patients presenting to rural hospitals with acute ischemic stroke (AIS).     

The nexus between firm-supply-chain relationships and the potential for tourism development: A case study approach

This exploratory study examines the importance of firm-supply chain relationships for tourism development. Based upon prior observations, two firms seeking to boost their tourism offerings and operating in a popular Vietnamese tourist destination were selected. Semi-structured face-to-face and online interviews were conducted and complemented by on-site visits, and firm information. Various salient dimensions emerged from the data analysis. The ‘performance catalyst’ and ‘detectable value adding’ dimensions underscore the supply chain's benefits, while the ‘discerning relations’ dimension highlights deeper relationships through mutual support, building trust, or demonstrating care. Conceptually, the study proposes a framework with associated theoretical and practical implications.     

Spectrum Licensing,Policy Instruments and Market Entry

Competition policy attempts to address the potential for market failure by encouraging competition in service markets. Often, in wireless communication service markets, national regulatory authorities seek to encourage entry via the spectrum assignment process. Instruments used include the assignment mode (auction or beauty contest), setting aside licenses and providing bidding (price and quantity) credits for potential entrants, and making more licenses (spectrum blocks) available than there are incumbent firms (excess licenses). The empirical analysis assesses the effectiveness of these policy instruments on encouraging entry. The econometric results show that the probability of entry is enhanced by using auction assignments and excess licenses. Furthermore, quantity, but not price, concessions encourage entry.     

Economic growth and balance-of-payments constraint in Vietnam

Abstract

Our paper examines the long-run relation between economic growth and current account equilibrium in Vietnam, using a multicountry balance-of-payments-constrained growth model. We find that for the whole sample (1985–2010) Vietnam grew less than the rate predicted by the model. We also find that the balance-of-payments-constrained growth rate shifted after the 1997 Asian crisis. Since the relative price effect is neutral, the volume effects dominate in setting the balance-of-payments constraint. On the one hand, owing to the high income elasticities of exports, growth in advanced countries has a strong multiplier effect on the Vietnamese economy. On the other hand, this effect is hindered by a strong “appetite” for imports coming from Asia. Finally, we assess the impact of the current crisis on Vietnam’s growth for the period 2011 to 2017.     

Causality and wage price inflation in West Germany 1964–1979

Zusammenfassung Kausalit?t und Lohn-Preis-Inflation in Westdeutschland 1964–1979. — In diesem Aufsatz wird ein Vierteljahresmodell der Lohn- und PreisInflation in Westdeutschland (1964 bis 1978) entwickelt. Es verwendet das Konzept der Phillips-Kurve, betont aber die überprüfbare Lohndruck-Hypothese und enth?lt die folgenden sechs Variablen: Konsumentenpreise, Effektivl?hne, Streiks, Tarifl?hne, Nachfrage nach Arbeitskr?ften und die Geldmenge M 1. Mit Hilfe des Konzepts der Wiener-Granger-Kausalit?t und kürzlich entwickelter Methoden der multivariaten Zeitreihenanalyse entsteht ein empirisches Kausalit?tsmodell der Lohn-Preis-Inflation für Westdeutschland. Dieses Modell stützt in starkem Ma\e die Lohndruck-Theorie und weist der Geldversorgung eine unbedeutende Rolle zu. Eine zweiseitige Kausalit?t besteht zwischen den Effektiv- und den Tarifl?hnen, so da\ es unangebracht ist, zeitlich verteilte Lags anzunehmen für die Tarifl?hne in der Lohngleichung oder umgekehrt für die Effektivl?hne in der Gleichung der Tarifl?hne. W?hrend sich als Hauptursache der Lohninflation die Inflationserwartungen und die Tarifl?hne identifizieren lassen, geh?ren zu den wichtigsten Ursachen der Preisinflation die erwarteten Preissteigerungen und die Erh?hung der Kapazit?tsauslastung.

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Résumé Causalité et l’inflation de prix et de salaire en Allemagne de l’Ouest 1964–1979. — Dans cet article l’auteur formule un modèle trimestriel de l’inflation de salaire et de prix pour l’Allemagne de l’Ouest sur la période de 1964.1 à 1978.4. Le modèle utilise les éléments fondamentaux de la courbe de Phillips, mais souligne l’hypothèse testable des déterminants de ?wage-push? et consiste de six variables économiques principales: les prix de consommation, les salaires nominaux, les grèves, les salaires contractuels minimum, la demande de la main-d’oeuvre et les disponibilités monétaires (M1). L’auteur applique le concept de causalité de Wiener-Granger aussi bien que des méthodes des séries chronologiques multivariates développées récemment et obtient un modèle empirique de causalité. Le modèle fortement supporte la théorie de ?wage-push? et révèle un r?le insignifiant des disponibilités monétaires. Une causalité deux-voies peut être observée entre les salaires nominaux et les salaires contractuels minimum. Par conséquent, il n’est pas indiqué de spécifier une structure des décalages retards distribués pour les salaires contractuels dans l’équation de salaire ou, qui est équivalent, pour les salaires nominaux dans l’équation de salaires contractuels minimum. Pendant que l’inflation anticipée et les salaires contractuels sont regardés comme les causes principales de l’inflation de salaire les facteurs décisifs de l’inflation de prix incluent les augmentations des prix attendues et l’augmentation de l’utilisation des capacités.

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Resumen Causalidad e inflation salarios-precios en Alemania Occidental 1964–1979. — En este artícule se formula un modelo trimestral de inflatión de salarios y precios para Alemania Occidental en el período 1964.1 a 1978.4. Este modelo se basa en la racionalidad de la curva de Phillips pero pone enfasis en la hipótesis comprobable de determinantes de presión de salarios y consiste de seis variables económicas importantes: precios al consumidor, salarios monetarios, huelgas, tasas de salarios mínimos negociados, demanda por trabajo y oferta de dinero M1. Usando el concepto de causalidad Wiener-Granger y métodos de series de tiempo multivariables desarrollados recientemente se obtiene un modelo empérico causal de inflatión salarios precios para Alemania Occidental. Este modelo da fuerte apoyo a la teoría de presión de salarios y revela un papel insignificante para la oferta de dinero. Hay una doble causalidad (o de feedback) presente entre salarios monetarios y tasas salariales minimas negociadas y, tomo tal, la práctica de especificar una estructura de rezago distribuida para estas tasas salariales en la ecuación de salarios, o equivalentemente, para salarios monetarios en la ecuación de tasas salariales mínimas negociadas es inapropiada. Mientras que las principales causas de la inflatión salarial se pueden identificar como inflatión anticipada y tasas salariales mínimas negociadas, las principales causas de la inflatión de precios incluyen aumentos de precios esperados y el aumento de la capacidad utilizada.

     

Does rising import competition harm local firm productivity in less advanced economies? Evidence from the Vietnam's manufacturing sector

This paper examines whether rising import penetration has an effect on the productivity of domestic firms. The study uses data on a 10-year unbalanced panel of firms in the manufacturing sector in Vietnam from 2000 to 2009. Panel and instrumental variable methods are used to control firm heterogeneity and endogeneity of import penetration. We find statistically significant and negative effects of import competition on local firms’ productivity, but the effect in terms of magnitude is economically small. Further investigation shows no clear evidence of variations in the effects by firm size and technological level. However, we find that rising import penetration is associated with the likelihood of firm death.     

APPLICATIONS OF BEHAVIOURAL ECONOMICS TO TAX EVASION

The paper reviews recent models that have applied the techniques of behavioural economics to the analysis of the tax compliance choice of an individual taxpayer. The construction of these models is motivated by the failure of the Yitzhaki version of the Allingham–Sandmo model to predict correctly the proportion of taxpayers who will evade and the effect of an increase in the tax rate upon the chosen level of evasion. Recent approaches have applied non‐expected utility theory to the compliance decision and have addressed social interaction. The models we describe are able to match the observed extent of evasion and correctly predict the tax effect but do not have the parsimony or precision of the Yitzhaki model.