From the Editor’s Desk

The present volume of Demography India encompasses twelve articles on various differentials of demography. The first articles of the issues deal with one of the major components of demography, i.e. mortality. This article investigates different factors associated with mortality by using a multivariate function.

Women’s reproductive behaviour is a most complex but also most necessary phenomenon to empathize for understanding the fertility pattern and its differentials. It is very difficult to empirically estimate the conception rate of women due to the lack of data. There has an interesting article which theoretically analyzes the probability of conception in a menstrual cycle and the sex ratio at birth by using the Morkov chain process. There is one more paper emphasizes the application of probabilistic modeling for estimating the sex composition of children and investigating the presence of son preference in Uttar Pradesh, India by using the third round of NFHS data.

There are two articles in this volume dealing with the health-related issues amongst elderly people of India. One examines the heterogeneity present among the senior citizens of India on reporting their self-assessed health condition. While the second one analyze the life expectancy of aged population of Kerala by using a multistate life table technique in the presence of some chronic disease. One more paper included in the current issue focuses on a public health problem by analyzing the trend of vitamin A coverage among the children across Indian States and also examines the variability inherent in the coverage of vitamin A by some socioeconomic and demographic differentials and lastly come up with some sort of suggestion which may be interesting for policy makers and demographers for enhancing the reportage of vitamin A. Sample Registration System (SRS) is a major source which continuously enumerates birth and death statistics of the population at national and state level and provides a number of demographic indicators such as Crude birth rate, Crude death rate etc. for each and every year. The reliability of SRS data is essential for all the demographers and researchers who do lots of work by using these data. In this context, this volume has one paper which examines the quality of SRS data with the help of civil registration system data.

There is one article which critically examines the lifetime migrant methodology used to measure the migration and highlights the inappropriateness involves in the mentioned method, followed by an article based decomposition analysis with projected population data of India from 2015-2100 in the several demographic indicators.

Non-response is a major issue faced by the surveyor in the process of data collection; many of the researchers drop the non-response or missing values from the data which reduces the sample size. One article included in the current volume deals with the non-response data and made adjustments in the HIV prevalence rate given in the third round of NFHS.

There are two articles elaborating the experiences of countries other than India- One analyze the trend and differentials of modern contraceptive use in Southern African countries while the other one is commentary in nature which discusses the population health and economic development indicators in the frame of time and policy for Sub Saharan countries.

Now Demography India is on the web and this is the first electronic version of Demography India. By this, we will definitely attract a large number of viewers and by doing this we can receive the electronic submission of research articles speeding up the review process. I would like to put on record the support received from experts, editors and editorial board members of the journal for their assistance. I am extremely thankful to all learned reviewers who have given their valuable time for reviewing the paper in time. Last but not least I am thankful to the Executive members and members of IASP to give me moral support at each step.

Varanasi Kaushalendra Kumar Singh