The Wooldridge Method for the Initial Values Problem Is Simple: What About Performance?

The Wooldridge method is based on a simple and novel strategy to deal with the initial values problem in the nonlinear dynamic random-effects panel data models. This characteristic of the method makes it very attractive in empirical applications. However, its finite sample performance is not known as of yet. In this paper we investigate the performance of this method in comparison with an ideal case in which the initial values are known constants, the worst scenario based on exogenous initial values assumption, and the Heckman's reduced-form approximation method which is widely used in the literature. The dynamic random-effects probit and tobit (type1) models are used as the working examples. Various designs of Monte Carlo Experiments with balanced and unbalanced panel data sets, and also two full length empirical applications are provided. The results suggest that the Wooldridge method works very well for the panels with moderately long durations (longer than 5-8 periods). In short panels Heckman's reduced-form approximation is suggested (shorter than 5 periods). It is also found that all methods perform equally well for panels of long durations (longer than 10-15 periods).initial values problem, dynamic probit and tobit models, Monte Carlo experiment, Heckman's reduced-form approximation, Wooldridge method

The politics of the post-conflict and post-disaster nexus in Nepal

The intersection of the post-conflict reconstruction processes established in Nepal’s Comprehensive Peace Agreement (CPA) in 2006, and the post-disaster reconstruction effort that swung into action following the country’s devastating earthquakes in 2015 provides an important opportunity to observe to what extent synergies between the two reconstruction processes have been successfully exploited. This paper critically examines these two processes, demonstrating that despite a growing recognition of the value of linking these processes by researchers, in practice they often remain separate. It shows how certain actors have framed the post-disaster reconstruction as unrelated to post-conflict activities in order to avoid what they perceive as the risk of politicising – and thus delaying – the post-disaster reconstruction process. The paper suggests that this is a mistake. The process of post-disaster reconstruction is innately political and intricately entwined with the very same issues and activities the post-conflict reconstruction process attempted to address. Moreover, we argue that the entire process is taking place within a political context which is a product of the as-yet unresolved post-conflict polity. Any reconstruction process that does not take this into account risks being undermined by the same challenges that underpinned the country’s conflict

Sundays Are Blue: Aren’t They? The Day-of-the-Week Effect on Subjective Well-Being and Socio-Economic Status

This paper analyses whether individuals are influenced by the day of the week when reporting subjective well-being. By using a large panel data set and controlling for observed and unobserved individual characteristics, we find a large day-of the-week effect. Overall, we find a 'blue' Sunday effect with the lowest level of subjective well-being. The day-of-the-week effect differs with certain socio-economic and demographic factors such as employment, marital status and age. The paper concludes with recommendations for future analyses of subjective well-being data and design of data collections.subjective well-being, day-of-the-week effect

The Persistence of Informality: Evidence from Panel Data

Informality is a growing phenomenon in the developing and transition country labor market context. In particular, it is noticeable that working in an informal employment relationship is often not temporary. The degree of persistence of informality in the labor market might be due to different sources: structural state dependence due to past informality experiences and spurious state dependence due to time-invariant unobserved individual effects, which can alter the propensity of being in the informal sector independently from actual informality experiences. The purpose of our paper is to study the dynamics of informality using a genuine panel data set in the Ukrainian labor market. By estimating a dynamic panel data probit model with endogenous initial conditions, we find a highly significant degree of persistence due to previous informality experiences. This result implies that policies attempting to reduce current levels of informality may have a long-lasting effect on the labor market.unobserved heterogeneity, state dependence, transition countries, informality

Current-mode Biquadratic Universal Filter Design with Two Terminal Unity Gain Cells

A grounded parallel lossy active inductor and two current-mode (CM) universal filters are presented in this paper. All the circuits use two voltage followers (VFs) and a current follower (CF). The parallel lossy active inductor includes a grounded capacitor which is attractive in integrated circuit (IC) technology. The CM universal filters have one input and standard three outputs such as band-pass (BP), low-pass (LP) and high-pass (HP) responses. All-pass and notch outputs can be obtained by adding extra one CF. Suggested structures in this paper can be constructed with commercially available active devices such as AD844s. Non-ideal gain and intrinsic X-terminal parasitic resistor effects are examined. Several computer simulations with SPICE program and experimental results by employing AD844s are drawn to verify theoretical ones

Does Relative Position Matter in Poor Societies? Evidence from a Survey Experiment in Rural Ethiopia

We investigated attitudes toward positionality among rural farmers in northern Ethiopia, using a tailored two-part survey experiment. On average, we found positional concerns neither in income per se, nor in income from aid projects among the farmers. These results support the claim that positional concerns are correlated with absolute level of income of a country.Ethiopia, relative income, positional concern

Understanding the dilemmas of integrating post-disaster and post-conflict reconstruction initiatives: Evidence from Nepal, Sri Lanka and Indonesia

This paper investigates the extent of links between the processes of post-disaster reconstruction and post-conflict reconstruction in three places – Nepal, Sri Lanka and Indonesia – which have all experienced both processeswithin a relatively short period of time. Drawing on extensive interviews with policy makers and practitioners it explores the dilemmas of attempting to link post-disaster and post-conflict reconstruction activities (PDR and PCR), and the key factors in decision making by those stakeholders who support this approach, and those who oppose it. The paper finds that whilst there is an appetite among many practitioners and stakeholders to link the two processes, there is also a concern that this will be difficult to achieve in a context that is already highlychallenging. It demonstrates that in practice the two processes have largely been understood and practiced as separate, though there are some important instances of overlap between the two. Where this overlap has occurred,it has produced very different effects in the different cases. Finally, the paper identifies a number offactors that appear to either prevent or enable links being made between post-conflict and post-disaster programming.These factors include politics and coordination, the nature of the conflict settlement, the difficulty ofmaintaining institutional memory, and the importance of sustaining the pace of the processes

The Effect of Power Outages and Cheap Talk on Willingness to Pay to Reduce Outages

Using an open-ended contingent valuation survey, we analyze how (i) experience of a power outage due to one of the worst storms ever to hit Sweden and (ii) a cheap talk script affect respondents' WTP to avoid power outages. Experience significantly increases and a cheap talk script decreases the proportion of respondents with zero WTP. There is no significant effect in either case on stated WTP conditional on a positive WTP. The paper concludes with a discussion on the use of valuation studies shortly after the occurrence of an undesirable event.contingent valuation, cheap talk, experience, power outages

Kitap için her zorluğa katlandım

Taha Toros Arşivi, Dosya No: 111-Kütüphanelerİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN/0033