为都市儿童留出玩乐空间

近来，中心城市儿童在公共空间受到伤亡的报道越来越多。据北京的一次调查表明，“坠楼”是儿童受伤的主要原因，数量甚至多于交通事故。其原由是学校、公园、住宅小区关闭了玩乐场所，交通和停车把儿童从原本属于他们的玩乐空间挤压出去。     

Financial Flows to Eastern Europe: Determinants,Volatility and Sustainability Issues

MOCT-MOST: Economic Policy in Transitional Economies -     

Farm earnings, educational attainment, and role of public policy: Some evidence from Mexico

Using real household survey data from Mexico, this study evaluates

• 1. 

  (a) the impact of schooling on farm earnings through the “direct” and “allocative” effects of human capital;

• 2. 

  (b) the household demand for children's schooling;

• 3. 

  (c) using macro-level data, the association between children's school-participation and some policy variables.

The overall rate of return to household heads' schooling is estimated at 25%, and for wives, 19%. The allocative effect of schooling of household heads dominates over the direct effect. Mother's schooling and farm size exercise significantly positive effects on household demand for schooling; while in the macro model, policy variables, government expenditure and pupil-teacher ratio appear strong determinants of children's attainment of primary schooling.     

Default Risk in Equity Returns

This is the first study that uses Merton's (1974) option pricing model to compute default measures for individual firms and assess the effect of default risk on equity returns. The size effect is a default effect, and this is also largely true for the book‐to‐market (BM) effect. Both exist only in segments of the market with high default risk. Default risk is systematic risk. The Fama–French (FF) factors SMB and HML contain some default‐related information, but this is not the main reason that the FF model can explain the cross section of equity returns.     

How past becomes prologue: a sensemaking interpretation of the hindsight-foresight relationship given the circumstances of crisis

Foresight is rooted in deep understanding [A.N. Whitehead. Lecture notes from address to the Harvard Business School, 1931]. Such understanding requires that we shall have first looked back to the past before venturing forward into the future. This paper uses Weick’s and colleagues’ sense making perspective in order to explore this critical relationship between the past and the future [[2], [3], [4], [5], [6] and [7]]. In particular, key sense making properties will be applied to a crisis, an occurrence of school-place violence that occurred in the United States in 1999. We shall then ask how this organization and its diverse external stakeholders used their understanding of this event to learn how to prevent such crises from occurring in the future. In other words, how capably was hindsight constructed and then how was it used to strengthen foresight into the future? This paper will conduct a theory-based empirical examination of a crisis event and its aftermath to understand how hindsight can be sharpened and then used to improve organizational foresight.     

An integrated algorithm for three-way compositional data

Quality & Quantity - Compositional data with a tridimensional structure are not uncommon in social sciences. The CANDECOMP/PARAFAC model is one of the most adequate techniques for modeling...