Imports and TFP at the firm level: the role of absorptive capacity

This paper estimates the effect of the decision to import intermediate goods and capital equipment on Total Factor Productivity (TFP) at the firm level on a panel of Spanish firms (1991–2002). We use two alternative approaches. In the first, we estimate TFP and apply a diff‐in‐diff estimator with a control group constructed by propensity‐score matching. In the second, direct method, we estimate TFP with imported inputs as a state variable in one stage. Both approaches show that the effect of a firm's decision to source intermediates and capital equipment abroad on its TFP depends critically on its capacity to absorb technology, measured by the proportion of skilled labour.     

A discussion of the market and policy failures associated with the adoption of herbicide-tolerant crops

Weed control in the U.S. Midwest has become increasingly herbicide-centric due to the adoption of herbicide-tolerant (HT) crops in the 1990s. That integrated weed management (IWM) practices, including ecological and mechanical controls, are scarcely used is concerning. IWM would be a more sustainable form of farming for two reasons. First, it would reduce the negative health and environmental externalities associated with herbicide use. Second, it would reduce the selection pressure on weed populations and the development of weed resistance to some herbicides, thereby reducing the uncertainty of the long-term effectiveness of herbicidal weed control. In this context, we develop an economic framework to clarify the interplay among the different market failures that either contribute to the herbicidal ‘lock-in’ or make it problematic. We then analyse the evidence for and perceptions of these market failures based on twenty-four semi-structured interviews with farmers and experts conducted in 2017, as well as on discussions in the academic literature. To this end, we put into perspective the possible self-reinforcing effects in the adoption path of HT crops, such as increasing farm size, changes in farm equipment, increasing incentives for simplified crop rotations, and the loss of practical knowledge of IWM practices.     

Work-related acculturation: change in individual work-related cultural values following immigration

The effects of culture in the workplace have been well documented. Because cultures vary across countries, business practices that are effective in some regions may not be effective in others. While cross-country cultural differences have been explored in depth, little is known about cultural variations and dynamics in the context of immigration. On the basis of a multilevel study of 2163 immigrants and locals residing in Canada, we investigate (1) patterns of immigrant acculturation; (2) the relationship between acculturation of visible elements of culture, such as language proficiency or cuisine and music tastes, and acculturation of tacit cultural values and (3) individual- and group-level predictors and moderators of acculturation. The results are discussed with a focus on implications for practitioner managers and immigration policy makers.     

钢铁产品合理价位与价格形成机制研究

党的十六届五中全会通过的决议中指出:"要坚持社会主义市场经济的改革方向,建立反映市场供求状况和资源稀缺程度的价格形成机制,更大程度地发挥市场在资源配置中的基础作用。"温家宝总理在十届人大四次会议的报告中进一步强调:价格改革的重点,是逐步理顺和完善资源性产品和要素价格形成机制。本文结合钢铁产品价格运行实际情况,对我国钢铁产品合理价位及价格形成机制进行了深入探讨,以促进钢铁工业健康发展。     

Benchmark priors for Bayesian model averaging

In contrast to a posterior analysis given a particular sampling model, posterior model probabilities in the context of model uncertainty are typically rather sensitive to the specification of the prior. In particular, ‘diffuse’ priors on model-specific parameters can lead to quite unexpected consequences. Here we focus on the practically relevant situation where we need to entertain a (large) number of sampling models and we have (or wish to use) little or no subjective prior information. We aim at providing an ‘automatic’ or ‘benchmark’ prior structure that can be used in such cases. We focus on the normal linear regression model with uncertainty in the choice of regressors. We propose a partly non-informative prior structure related to a natural conjugate g-prior specification, where the amount of subjective information requested from the user is limited to the choice of a single scalar hyperparameter g_0j. The consequences of different choices for g_0j are examined. We investigate theoretical properties, such as consistency of the implied Bayesian procedure. Links with classical information criteria are provided. More importantly, we examine the finite sample implications of several choices of g_0j in a simulation study. The use of the MC³ algorithm of Madigan and York (Int. Stat. Rev. 63 (1995) 215), combined with efficient coding in Fortran, makes it feasible to conduct large simulations. In addition to posterior criteria, we shall also compare the predictive performance of different priors. A classic example concerning the economics of crime will also be provided and contrasted with results in the literature. The main findings of the paper will lead us to propose a ‘benchmark’ prior specification in a linear regression context with model uncertainty.     

Rotation Patterns and Trend Estimation for Repeated Surveys Using Rotation Group Estimates

A general approach for constructing filters to produce trend estimates from a repeated survey is described. This approach accounts for the correlation structure induced by the rotation pattern used in the survey. Different filters are developed depending on whether the trend analysis is based on elementary estimates available for each rotation group or overall estimates obtained by combining the rotation group estimates. The properties of trend estimates obtained directly from the elementary estimates, those obtained from the simple average of the rotation group estimates and trend estimates obtained from the best linear unbiased estimates of the population characteristics of interest are compared. These comparisons are done for a number of rotation pattern, enabling an assessment of the impact of the choice of rotation patterns on trend estimation.     

Some Parallels Between Currency and Banking Crises

There is a sizeable literature on the causes of speculative attacks on fixed exchange rates and a large literature on the determinants of bank runs. Surprisingly, these two literatures rarely overlap, even though both types of crises involve attacks on asset price-fixing schemes. This paper draws a number of parallels between the work on currency crises and the work on banking crises and examines some of the new insights that are coming out of a more integrated approach in the aftermath of the Asian financial crises.     

The health insurance status of Texans: Determinants of uninsurance (summary)

This is a report of a statewide survey of the numbers and characteristics of the uninsured, giving a profile of the uninsured in Texas.