A comment on ‘the small country assumption: a note on Canadian export’

Some simple statistical tests of efficiency are applied to limited diversification portfolios that are optimal in terms of minimizing risk measured by variances. These tests are intended to detect in some sense robustness, near-singularity and improvement of a portfolio by revision. The illustrative application considers eleven securities selected randomly from Moody's Handbook over the years 1970–81     

A note on ‘Corporate Social Responsibility and Marketing Channel Coordination’

Goering (2012) works on a bilateral monopoly with perfect marketing channel coordination to analyze the effects of corporate social responsibility. He starts the analysis of a bilateral monopoly with socially concerned firms where either the manufacturer or the retailer is additionally to its profit interested in a share of consumer surplus. In this short note, we extend this analysis and study the case where both firms are socially concerned. As a result, we enlarge the analysis started by Goering (2012) and get further interesting insights into a bilateral monopoly with corporate social responsibility. First, we are able to summarize ‘Proposition 1’ and ‘Proposition 4’ into a common one and figure out the circumstances when the wholesale price fixed by the manufacturer is below marginal costs. Second, we explain analytically the findings from ‘Proposition 3’ and ‘Proposition 6’. We point out the model's key assumption – the perfectly coordinated marketing channel – as the driver of the results and the reason for the equilibrium results' independence from retailer's social concern.     

Which pasture is really greener? A research note on salary studies

National and regional studies of nurse salaries often draw conclusions based solely on the dollar values reported. This brief research note shows the importance of including information about the cost of living into any comparative analysis of geographic differences in salaries.     

Hayek’s monetary theory and policy: A note on alleged inconsistency

Challenging the dominant view, we claim that Hayek’s monetary views did not significantly change over his lifetime. The prevalent perception of early Hayek as a money stream stabilizer and late Hayek as a price level stabilizer is attributable to an unjustified normative interpretation of Hayek’s positive analysis. We argue that in his contributions to monetary theory, Hayek took the goals of monetary policy as exogenously given and analysed the efficiency of different means of achieving them. Hayek’s allegedly inconsistent transformation from a critic to an advocate of price level stabilization is explained by a change of issues under his focus, rather than by a change in his positive views. We also claim that Hayek was always aware that every practical monetary policy involves difficult trade-offs and that he was therefore reluctant to impose his own value judgments on what people should strive for.     

A note on the exchange market pressure: the Korean experience, 1980–1987

This paper applies the exchange market pressure (EMP) model to Korea under a managed floating exchange rate. We show that the EMP model is superior to one concentrating solely on foreign reserve or exchange rate changes. Given that the balance of paymnets in Korea experienced a drastic turn to surplus during the estimated period, we checked the stability of the coefficients. The results show that the coefficients have remained stable.     

Like father, like son? A note on the intergenerational transmission of IQ scores

Using a large population-based dataset, we estimate a substantial intergenerational transmission of IQ scores; a 10% increase in father's score at age 18 is associated with a 3.2% increase in son's score. This relationship also holds true for various subpopulations.     

Rational vs historical reconstruction – a counter-note on Signorino's note on Blaug

Heckscher's 1919 article originated the Heckscher-Ohlin theory of international trade. In 1987 Carl Uhr pointed out that Heckscher in 1928 made another major contribution to economics in a German-language article on ‘intermittently free goods’, presenting ‘a theory of imperfect competition nine years ahead of that by Joan Robinson and Edward Chamberlin, and a discussion of collective goods not priced by the market’. This paper summarizes the salient ideas of Heckscher's article. It evaluates its merits, originality and significance for the history of economic thought, and how it fits into the ‘revolutionary’ developments of the theory of imperfect competition in the 1930s.     

A note on the ‘Linsanity’ of measuring the relative efficiency of National Basketball Association guards

This note examines the productive efficiency of 62 starting guards during the 2011/12 National Basketball Association (NBA) season. This period coincides with the phenomenal and largely unanticipated performance of New York Knicks’ starting point guard Jeremy Lin and the attendant public and media hype known as Linsanity. We employ a data envelopment analysis (DEA) approach that includes allowance for an undesirable output, here turnovers per game, with the desirable outputs of points, rebounds, assists, steals and blocks per game and an input of minutes per game. The results indicate that depending upon the specification, between 29% and 42% of NBA guards are fully efficient, including Jeremy Lin, with a mean inefficiency of 3.7% and 19.2%. However, while Jeremy Lin is technically efficient, he seldom serves as a benchmark for inefficient players, at least when compared with established players such as Chris Paul and Dwayne Wade. This suggests the uniqueness of Jeremy Lin's productive solution and may explain why his unique style of play, encompassing individual brilliance, unselfish play and team leadership, is of such broad public appeal.     

A note on model selection in (time series) regression models – general-to-specific or specific-to-general?

This article provides Monte Carlo evidence on the performance of general-to-specific and specific-to-general selection of explanatory variables in linear (auto)regressions. In small samples the former is markedly inefficient in terms of ex-ante forecasting performance.     

Should central bankers discount the future? A note

Optimal monetary policy under discretion is analysed in a New Keynesian model with rule of thumb pricing. The paper finds that social welfare increases if the policy maker does not discount the future. The welfare improvement rises with the extent of intrinsic inflation persistence.     

A replication note on unemployment in the OECD since the 1960s: what do we know?

Nickell et al. (Econ J 115(500):1–27, 2005) argue that unemployment rates cointegrate with labour market institutions in a panel of OECD countries. This paper replicates their Maddala–Wu panel cointegration test and shows that this test is only valid when (i) the number of countries tends to infinity and (ii) the underlying country-specific cointegration tests are independent. Their finding of cointegration does not survive when small sample properties and heterogeneous cross-sectional dependencies are taken into account. We acknowledge financial support from the Interuniversity Attraction Poles Program, Belgian Science Policy, contract no. P5/21. The usual disclaimer applies.     

A note on “Rethinking liquidity creation: Banks,shadow banks and the elasticity of finance”

Abstract

In their recent article, Yeva Nersisyan and Flavia Dantas proposed to amend the endogenous money theory to account for the activity of nonbank financial institutions (NBFIs) and of foreign banks. It is indeed argued that the traditional post Keynesian and circuitist approaches are overly narrow because they rely on a limited definition of money. Consequently, these approaches are focused on commercial banks (that create money) and regard other financial institutions as mere intermediaries that intermediate funds from surplus units (savers) toward deficit units (borrowers). Because it treats NBFIs as mere intermediaries, the authors argue that the traditional post Keynesian framework is no longer relevant for the analysis of the contemporary financial system. We believe that this critique is not justified. Using balance sheet analysis, we show that the destabilizing role of NBFIs can be taken into account within the traditional post-Keynesian framework.     

A note on Peters and Severinov, “Competition among sellers who offer auctions instead of prices”

We consider a market in which sellers compete for buyers by advertising reserve prices for second-price auctions. Applying the limit equilibrium concept developed in Peters and Severinov (1997) [1], we show that the competitive matching equilibrium is characterized by a reserve price of zero. This corrects a result in Peters and Severinov (1997) [1].     

“A profit table or a profit calculator?” A note on the design of Cournot oligopoly experiments

We report on an experiment conducted to evaluate the effects of varying the way in which market information is presented to participants in laboratory Cournot duopolies. We find that the most standard variations, which are the use of a profit table or a profit calculator, yield indistinguishable performance. However, the addition of a best-response option to the profit calculator tends to increase aggregate output to the Cournot level and decrease the incidence of tacit collusion.     

Does the constraint matter? A note on the asymptotic properties of nonparametric instrumental variable estimation under monotonicity shape constraint

I show that constrained monotone instrumental variable estimators are asymptotically equivalent to their unconstrained counterparts whenever the true regression function is in the interior of the constrained set. In a simulation study, a sieve-based constrained estimator is shown to outperform the unconstrained one even in cases where both are asymptotically equivalent.     

The “Cambridge” critique of the quantity theory of money: A note on how quantitative easing vindicates it

Through quantitative easing markets have been flooded with liquidity, but rather than inflation we have witnessed a general deflation because of the liquidity trap environment in which the banking system operated; this article revisits the arguments against the quantity theory in the “Cambridge” tradition of John Maynard Keynes, Richard Kahn, and Nicholas Kaldor, and defends their soundness and topicality.     

A brief note concerning Hayek’s non-standard conception of knowledge

Whatever F.A. Hayek meant by “knowledge” could not have been the justified true belief conception common in the Western intellectual tradition from at least the time of Plato onward. In this brief note, I aim to uncover and succinctly state Hayek’s unique definition of knowledge.