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This chapter focusses on the complexity of observation, considering its role in lesson study, following a broader discussion of how observation is generally understood in teaching contexts. The authors argue that lesson study observation is formative and should not be performative in focus. In lesson study cycles, observation is a process conducted among peers ideally in a spirit of mutual support and collaborative inquiry, seeking to find answers to pedagogic challenges rather than measuring the effectiveness of individual teachers.

The minimum wage has been regarded as an important element of public policy for reducing poverty and inequality. Increasing the minimum wage is supposed to raise earnings for millions of low-wage workers and therefore lower earnings inequality. However, there is no consensus in the existing literature from industrialized countries regarding whether increasing the minimum wage has helped lower earnings inequality. China has recently exhibited rapid economic growth and widening earnings inequality. Since China promulgated new minimum wage regulations in 2004, the magnitude and frequency of changes in the minimum wage have been substantial, both over time and across jurisdictions. The growing importance of research on the relationship between the minimum wage and earnings inequality and its controversial nature have sparked heated debate in China, highlighting the importance of rigorous research to inform evidence-based policy making. We investigate the contribution of the minimum wage to the well-documented rise in earnings inequality in China from 2004 to 2009 by using city-level minimum wage panel data and a representative Chinese household survey, and we find that increasing the minimum wage reduces inequality – by decreasing the earnings gap between the median and the bottom decile – over the analysis period.

Panel data provide the possibilities of estimating individual treatment effects for multiple individuals. Two issues are considered: (1) differences in the estimated individual treatment effects are due to heterogeneity or a chance mechanism? (2) what is the best way to estimate the average treatment effects? Testing and aggregation methods are suggested. Monte Carlo simulations are also conducted to shed light on these two issues. An empirical analysis on the involvement of underground organization in China’s Peer-to-Peer (P2P) activities through the “anti-gang” campaign is also provided.

That asset returns are typically neither independent nor normally distributed is a stylised fact of many financial markets. We examine market returns for a number of emerging Asian nations before and during the Asian crisis and global financial crisis periods and consider how well these are described by the assumptions of normality and independence. Specifically we seek to ask how – if at all – these crises impacted upon the time-series properties of stock market returns in the emerging Asian economies. The first part of the chapter examines the comparative fit of the normal distribution to daily stock market returns for each of the economies under observation. The second part of the chapter follows with an examination of dependence relations in emerging Asian market returns around the crises periods.

The Baumol effect follows from simple but deep microeconomic reasoning. All prices are relative prices, so if some goods are getting cheaper, others must be getting more expensive. Simple. But in transferring our attention about the cause of rising prices from stagnating sectors to progressive sectors, the Baumol effect radically changes our understanding of the causes, consequences, and evaluation of rising prices. Even today, the power of the Baumol effect to explain price changes through different time periods and places is underestimated. Throughout his career, Baumol returned to this simple idea many times, making it a key to his thought and his evolving views on long-term economic development.

This chapter examines the relationship between state failure, state-building and regional security through a thick qualitative and historical analysis of a single case: the Russia–Georgia relationship. Its principal finding is that the two sides’ conceptions of state-building contained incompatible identity projects that significantly increased the potential for conflict. This potential emerged in the context of a highly asymmetrical distribution of power in the region. The balancing strategies that Georgia pursued to compensate for this asymmetry aggravated the relationship further and were significant in provoking the August 2008 war between the two states. In making this argument, the chapter begins with a discussion of the relationship between state-building and security. It then turns to an account of the near failure and recovery of the two states and a discussion of the relationship between their state-building projects. It proceeds to situate this unit-level analysis in the regional systemic context. After a discussion of the war itself, the chapter provides concluding remarks on the implications of the conflict for regional security and for the wider discussion of state-building and security. The major implication is that, although state-building is seen as a domestic endeavour, the way in which the project is defined and develops has significant external and regional implications, which may enhance the potential for inter-state conflict. As such, international engagement should take account of the regional environment in efforts to foster the re-building of states.

Several studies have observed that stocks tend to drop by an amount that is less than the dividend on the ex-dividend day, the so-called ex-dividend day anomaly. However, there still remains a lack of consensus for a single explanation of this anomaly. Different from other studies, this dissertation attempts to answer the primary research question: how can investors make trading profits from the ex-dividend day anomaly and how much can they earn? With this goal, I examine the economic motivations of equity investors through four main hypotheses identified in the anomaly's literature: the tax differential hypothesis, the short-term trading hypothesis, the tick size hypothesis, and the leverage hypothesis.

While the U.S. ex-dividend anomaly is well studied, I examine a long data window (1975–2010) of Thailand data. The unique structure of the Thai stock market allows me to assess all four main hypotheses proposed in the literature simultaneously. Although I extract the sample data from two data sources, I demonstrate that the combined data are consistently sampled. I further construct three trading strategies – “daily return,” “lag one daily return,” and “weekly return” – to alleviate the potential effect of irregular data observation.

I find that the ex-dividend day anomaly exists in Thailand, is governed by the tax differential, and is driven by short-term trading activities. That is, investors trade heavily around the ex-dividend day to reap the benefits of the tax differential. I find mixed results for the predictions of the tick size hypothesis and results that are inconsistent with the predictions of the leverage hypothesis.

I conclude that, on the Stock Exchange of Thailand, juristic and foreign investors can profitably buy stocks cum-dividend and sell them ex-dividend while local investors should engage in short sale transactions. On average, investors who employ the daily return strategy have earned significant abnormal return up to 0.15% (45.66% annualized rate) and up to 0.17% (50.99% annualized rate) for the lag one daily return strategy. Investors can also make a trading profit by conducting the weekly return strategy and earn up to 0.59% (35.67% annualized rate), on average.

Economists and sociologists have proposed arguments for why there can exist wage penalties for work involving helping and caring for others, penalties borne disproportionately by women. Evidence on wage penalties is neither abundant nor compelling. We examine wage differentials associated with caring jobs using multiple years of Current Population Survey (CPS) earnings files matched to O*NET job descriptors that provide continuous measures of “assisting & caring” and “concern” for others across all occupations. This approach differs from prior studies that assume occupations either do or do not require a high level of caring. Cross-section and longitudinal analyses are used to examine wage differences associated with the level of caring, conditioned on worker, location, and job attributes. Wage level estimates suggest substantive caring penalties, particularly among men. Longitudinal estimates based on wage changes among job switchers indicate smaller wage penalties, our preferred estimate being a 2% wage penalty resulting from a one standard deviation increase in our caring index. We find little difference in caring wage gaps across the earnings distribution. Measuring mean levels of caring across the U.S. labor market over nearly thirty years, we find a steady upward trend, but overall changes are small and there is no evidence of convergence between women and men.

The purpose of this chapter is to assess the importance of individual social capital characteristics in determining wages, both directly through their valuation by employers and indirectly through their impact on individual occupational choice. We find that a person’s level of sociability and care for others works through both channels to explain wage differences between social and nonsocial occupations. Additionally, expected wages in each occupation type are found to be at least as important as a person’s level of social capital in choosing a social occupation. We make use of restricted 2000 Decennial Census and 2000 Social Capital Community Benchmark Survey.