On the other hand, we have external one which we cannot less control, is an exogenous variable. What are they? External variables is considered in this double structure of vulnerability as exposure. So, exposure to what, some shock or some events like it depends on what kind of shocks, is it natural phenomena or some epidemics or not merely a kind of special exposure but how defenseless like I am for that one.

It also defined the social and institutional structure, features of that one that also bring individuals in a particular exposure of threat and like if I am an outcast, I have less networks, it actually increase my exposure to a hazard, to a threat, to a risk.

So, double structure of vulnerability, two components; one is the exposure one and this exposure one according to Bohle that we can understand this exposure context from 3 different dimensions. One is human ecological perspective, population dynamics, capacity to manage the environment, population growth, and how human ecology is looking at population growth and the capacity to manage the environment.

Well to understand people's coping, we can also borrow the ideas from crisis and conflict kind of studies, who have the access to assets and resources and how it matter of conflict between individuals and groups or maybe sometimes action theory approaches, how people act, react frequently as a result of social-economic and governmental constraints and model access to assets like a mitigation of vulnerability through access.

There is another more prominent and very popular conceptual idea of vulnerability is the sustainable livelihood framework. It is not really on vulnerability, but they are one of the pioneering approach that define and quoted the vulnerability and which was now very regularly used in disaster risk and other risk management.

Their focus is like one poor people and their livelihood. When they are talking about vulnerability, it did not came from, did not come from the disaster perspective, but they are talking defining poor people and their livelihood in case of development and people at the center of their model.

When it is resilient to face any kind of external shocks like natural disasters or epidemics that they can absorb this shock, they can bounce back, they will not finish. Then, one can say that this livelihood or these people are not at risk, they are not vulnerable.

So, vulnerability context is defined with 3 characteristics that people are at vulnerable because shock, trends, and seasonality.

So what are the shocks? One is the natural shocks like flood, drought, and cyclone. And health shocks like epidemic like cholera or even dengue let us say, or economic shocks like some financial recessions or maybe death in the family for a household or maybe violence like civil war in case of Syria or in many other countries in case of Sri Lanka when they were in civil war or in case of Bosnia.

Another one is the seasonality and seasonal shift in price like the price of the crops of the food for the agricultural labor or the productions because of production is low or high, because of climate change maybe the production is not so high this year.

Now, this vulnerability context actually, this is the poor people and is affecting their household capacity or their own individual capacity. So, they have actually different kind of capitals or capacities. One is a human capital, social capital, financial capital and physical capital.

So, how one look into these livelihood assets or capitals? Livelihood assets we say that there are 5 capitals; human capital, social capital, physical capital, financial capital, and natural capital.

And human capital; knowledge and skill like education or good health I am capable person, nutrition I am getting enough food, nutritious food, ability to labor I can work, I can give my labor, capacity to adapt, in any situation, I can adapt culturally.

And social capital, of course my network, network works very well, my human networks, connections with each other or membership in a group, formal and informal. Like I can go to some club or maybe in a puja or in so any kind of formal and informal relationship defines my social capital.

And trust and mutual support, during emergency situations or any situations, we need to cooperate with each other and we need to trust each other because trust minimize the uncertainty so trust and mutual support between individuals in a group is very important and this is one of the social capital, and also it depends on the social capital, the rules and sanctions, social norms are there.