Flexible estimation of price response functions using retail scanner data

Kalyanam and Shively [1998. Estimating irregular pricing effects: a stochastic spline regression approach. Journal of Marketing Research 35 (1), 16–29] and van Heerde et al. [2001. Semiparametric analysis to estimate the deal effect curve. Journal of Marketing Research 38 (2), 197–215] have demonstrated the usefulness of nonparametric regression to estimate pricing effects flexibly. The empirical results of these two studies, however, also revealed that nonparametric regression may suffer from too much flexibility leading to nonmonotonic shapes for price effects. In this paper, we show how the problem of nonmonotonicity can be dealt with without losing the power of flexible estimation techniques. We propose a semiparametric approach based on Bayesian P-splines with monotonicity constraints imposed on own- and cross-price effects. In an empirical application, we illustrate that flexible estimation of own- and cross-price effects can improve the predictive validity of a sales response model substantially, even when price response curves were constrained to show a monotonic shape, as suggested by economic theory. We also discuss the consequences from an unconstrained estimation of price effects.     

James M. Buchanan’s contractarianism and modern liberalism

This paper contrasts Buchanan’s contractarian–constitutional liberalism with Hayek’s evolutionary liberalism and Rothbards free-market liberalism as representative branches of the classical liberal tradition. While Hayek and Rothbard focus on individual liberty as private autonomy, Buchanan posits that individual sovereignty should be recognized as the fundamental normative premise of liberalism. He insists that a consistent application of this premise requires liberals to respect individuals as sovereigns not only in their capacity as private law subjects but also at the constitutional level of choice where, as sovereign citizens, they choose, jointly with their fellow citizens, the rules under which they wish to live. It is argued that by supplementing the notion of individual liberty as private autonomy with the concept of individual sovereignty in constitutional matters Buchanan lays the theoretical foundation for complementing the well-developed liberal theory of the market with a consistent liberal theory of democracy.     

Donor ideology and types of foreign aid

We examine how donor government ideology influences the composition of foreign aid flows. We use data for 23 OECD countries over the period 1960–2009 and distinguish between multilateral and bilateral aid, grants and loans, recipient characteristics such as income and political institutions, tied and untied aid, and aid by sector. The results show that leftist governments increased the growth of bilateral grant aid, and more specifically grant aid to least developed and lower middle-income countries. Our findings confirm partisan politics hypotheses because grants are closely analogous to domestic social welfare transfer payments, and poverty and inequality are of greatest concern for less developed recipient countries.     

THE IMPLICATIONS OF TRADER COGNITIVE ABILITIES ON STOCK MARKET PROPERTIES

Market structure and individual rationality remain at the centre of a debate as to which is the main driving force in market performance. We examine the role of individual rationality, comparing zero‐intelligence traders with traders with different levels of intelligence using a special adaptive form of strongly typed genetic programming‐based learning algorithm. We use this approach with real data: historical quotes of the S&P 500 and Coca‐Cola stock prices. We find a mixture of positive and negative impacts from intelligence on market performance. Because the concept of market structure as a driving force has been significantly challenged in the literature, we suggest that the inclusion of both intelligence and market structures is important when examining the driving forces of market performance. This inclusion is consistent with the research of Todd and Gigerenzer (Journal of Economic Psychology, 24 (2003) 143–165), which asserts that both environment (market structure) and agents’ cognition play important roles. Copyright © 2013 John Wiley & Sons, Ltd.     

Joint Leverage and Maturity Choices in Real Estate Firms: The Role of the REIT Status

We explore the interdependence of leverage and debt maturity choices in Real Estate Investment Trusts (REITs) and unregulated listed real estate investment companies in the U.S. for the period 1973-2011. We find that the leverage and maturity choices of all listed real estate firms are interdependent, but in contrast to industrial firms, they are not made simultaneously. Across the different types of real estate firms considered, we find substantial differences in the nature of the relationship between leverage and maturity. Leverage determines maturity in non-REITs, whereas maturity is a determinant of leverage in REITs. We suggest that the observed differences reflect the effects of the REIT regulation, rather than solely being a function of real estate as the underlying asset class. We also present novel evidence that the relationship between leverage and maturity in both firm types can be used to moderate the effects of other exogenous financing policies.     

Economic sociology: a historical perspective

In this paper we briefly recall what is meant by economic sociology, basing our definition principally on the works of R. Swedberg and M. Cranovetter. We then focus on the questions and problematics which are more particularly relevant to the history of economic and sociological thought in such a way as to make explicit the kind of past in relation to which economic sociology is most pertinent. We shall thus be induced to correct certain explanations and to propose a slightly different perspective on the origin of economic sociology. This historical work enables us to formulate a definition of economic sociology based on two key concepts - economic institution and economic action - and allows us to articulate what economic sociology actually is, rather than merely describing what it is not. Finally, we show that these propositions are not without interest in relation to the present-day economic sociology that tends to go by the name - made fasionable by Granovetter and Swedberg - of ‘New Economic Sociology.’     

The Effectiveness and Efficiency of Active Labour Market Policies in Poland

Following the predominance of macroeconomic stabilisation policies and passive income support schemes in the first phase of transition, active labour market policies (ALMPs) have now come to play a more important role in transition economies. This paper looks at the Polish experience and provides empirical evidence on the effectiveness of ALMPs. We use the Polish Labour Force Survey of August 1994 in combination with its Supplement on the Evaluation of Labour Market Policies together with data on ALMP expenditure at the regional (voivodship) level. The macroeconometric analysis of the relationship between labour market flows and ALMP expenditure shows no significant effects. The microeconometric analysis reveals that ALMPs are not particularly well targeted at the problem groups in the labour market. That is, women and people with basic vocational education do not receive enough attention. As to the effectiveness of ALMPs, the paper shows that former participants cannot expect to find employment more easily than their peers who have been unemployed but have not been in a programme. Subjective evaluations of former participants also suggest that ALMPs, but especially works programmes, have not improved their chances to find a job. This revised version was published online in July 2006 with corrections to the Cover Date.     

Die zeitliche Determinierung des Konjunkturbruches

Ohne Zusammenfassung